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EasyPost

EasyPost shipping API and platform changelog updates

EasyPost API Changelog Monitoring

Shipping integrations often fail at the worst possible moment when upstream APIs change quietly. This EasyPost API Changelog Monitoring page gives logistics-focused teams a better way to review new release notes and track adjustments that could affect labels, tracking, or fulfillment.

Practical EasyPost API Changelog Monitoring helps shipping teams identify changes before they create label failures, carrier mismatches, or fulfillment delays. A visible changelog workflow also makes it easier to align engineering and operations on what needs attention first.

The benefit of EasyPost API Changelog Monitoring is simple: your team gets a repeatable way to watch changes, evaluate risk, and act before small upstream updates turn into customer-facing bugs. EasyPost shipping API and platform changelog updates

EasyPost API down?

EasyPost API down? Soon we will add direct API status monitoring alongside EasyPost API Changelog Monitoring. For now, go to the official API status page on the EasyPost website. In the future, we plan to detect downtime symptoms even before the public status page is updated.

Recent changes

Showing the last 10 changes from this feed.

03-14-2026

Version 2026.03.14 – March 14, 2026

Version 2026.03.14 – March 14, 2026This release improves Core API order purchase performance, adds Royal Mail tracking support, and introduces Amazon Shipping and Passport Global as new Enterprise carrier integrations.Core API Platform — New features and enhancementsDHL Express — Added support for Importer Address ID mapping.UniUni — Added support for a new tracking endpoint used for insured shipments.UniUni — Enabled tracker creation without requiring a carrier account.Royal Mail V3 — Added first and second class rate cards.Royal Mail V3 — Added additional feature support for standalone tracker creation.Wallet billing — Added refund support for invoices applied to customer wallets, including zero-amount invoices.FlexRate and Subaccount Groups — Released these capabilities for general customer availability.FedEx — Added Signature Proof of Delivery (SPOD) support in tracking.Core API Platform — Fixed issuesFedEx SmartPost — Corrected alternate identifier handling for SmartPost carrier accounts.FedEx REST MFA — Improved validation errors for nested registration parameters.FedEx MFA — Enabled FedEx MFA by default in the web application.Core API Platform — Performance improvementsOrder purchase operations — Reduced unnecessary tracker lookups during order buy flows to improve processing speed.EasyPost Enterprise — New features and enhancementsDHL — Added multi-pallet support for BBX shipments.Amazon Shipping — Added new carrier integration and removed the deprecated Amazon MWS carrier.Passport Global — Added new carrier integration with Priority DDU support.Zone Carrier — Added support for reading and loading range, holiday, and time-in-transit files.Data functions — Added new numeric and date formatting actions.Document services — Added SaveForm and GlobalSave support.License service — Added support for creating default modules during license import.InfoShip — Added UpdateUserStatus support to display session information.Manifest output — Updated UI and field handling for multiple data types.EasyPost Enterprise — Fixed issuesDHL — Fixed a reference handling issue in the DHL service.FedEx — Improved electronic trade document handling.FedEx — Fixed an issue that could affect concurrent worker startup.Document services — Fixed exceptions related to external document references.Web server — Fixed an intermittent batch shipping live-lock issue.Render service — Fixed issues affecting vectorized image rendering and final bit handling.

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03-07-2026

Version 2026.03.07 – March 7, 2026

Version 2026.03.07 – March 7, 2026This release expands FedEx SmartPost REST support, adds new USPS IMB rating capabilities, improves international rate flexibility in Forge, and introduces ICS Courier as a new Enterprise carrier integration.Core API Platform — New features and enhancementsFedEx SmartPost — Added REST-based rating and purchase support for SmartPost accounts using REST credentials, including support for multi-piece orders and service-level filtering.FedEx SmartPost — Added print custom text annotations for SmartPost REST labels.FedEx — Improved UKIMS tax identifier handling for shipments from Great Britain to Northern Ireland.UPS GroundSaver — Added support for print custom fields on GroundSaver labels.UPS — Added support for alternate identifier mapping on label purchases.UPS DAP — Added support for international returns outside the United States.Forge — Added support for passing through non-USD rates.Core API Platform — Fixed issuesUPS — Standardized currency formatting for consistency across carriers.USPS Ship — Fixed a timeout handling issue affecting rate requests.UPS Premier — Corrected the rate-then-buy flow for Premier shipments.Label uploads — Improved reliability of label uploads and error detection during processing.FedEx — Improved pickup request error handling and validation for failed API calls.FedEx — Fixed international pickup request handling for countries that do not use state codes.FedEx — Improved the error message shown when a shipment uses both dry ice and a predefined package type.EasyPost Enterprise — New features and enhancementsICS Courier — Added new carrier integration with support for labels, rating, transit-day validation, and reference fields.Purolator — Added induction point address support for U.S. origin shippers.Zone Carrier — Added ship-on-hold support for zone carrier shipments.Zone Carrier — Added support for region file management for rate, region, and holiday data.Shipper tools — Added enhanced shipper listing capabilities.Field handling — Increased supported capacity for integer field values.Zone Carrier — Updated tracking information handling to improve estimates and range tracking.EasyPost Enterprise — Fixed issuesFedEx FSMS — Updated return label barcode formatting to match expected output.FedEx FSMS — Improved error handling when gross weight is missing or invalid.Document output — Fixed an issue where outputs could be saved when the destination was empty.Bulk operations — Resolved an issue affecting certain SQL bulk copy workflows.Weights — Fixed an error that could occur when using large weight values.Performance improvementsLabel rendering — Improved image unpacking and rendering performance for ZPL-based labels.

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03-01-2026

Version 2026.03.01 – March 1, 2026

Version 2026.03.01 – March 1, 2026This release improves subscription billing performance, introduces a new generic API request interface across SDKs, and enhances carrier integrations, including FedEx One Rate packaging and UPS GroundSaver updates.Core API Platform — New features and enhancementsGeneric API request interface — Added support for making arbitrary API requests across C#, Java, Node.js, PHP, and Ruby SDKs.Shipment invoice webhooks — Added shipment.invoice.updated webhook event for billed shipment disputes.Tracker reliability — Improved tracker lookup reliability to prevent temporary 404 errors immediately after shipment purchase.[FedEx] One Rate packaging — Added support for the FedEx Extra Small Box package type.[UPS] GroundSaver — Added delivery date calculations and improved rate handling.Core API Platform — USPS Ship enhancementsPassthrough account improvements — Expanded passthrough support for end merchant accounts, including credential handling, void support, and rating enhancements.Tracking details — Added carrier_code to tracking_details responses.Core API Platform — Fixed issues[FedEx] Resolved billing address validation issue during carrier account registration.[UPS] Improved error messaging for blocked pickup requests.API request handling — Fixed encoding issues when inspecting invalid UTF-8 characters.Subscription processing — Fixed serialization issue affecting override threshold values.Core API Platform — Performance improvementsSubscription billing — Improved usage summary loading performance for all customers.EasyPost Enterprise — New features and enhancements[DHL] Consolidated and enhanced document template support.Document synchronization — Added automatic synchronization of included documents.Zone Carrier — Added tracking and waybill number generation capabilities.Document Builder — Improved global definitions and user experience.Log viewer — Updated log view to reflect browser-based timezone.Saturday delivery — Added Saturday delivery flag support.Profile menu — Added Wiki link to profile dropdown.Python editor — Improved autocomplete and value display functionality.EasyPost Enterprise — Fixed issues[FedEx] Fixed label generation and rate handling issues.Shipment processing — Addressed issues affecting printing and reference field handling.Authentication — Added buffer to API token expiration handling.

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03-01-2026

Version 2026.03.01 – March 1, 2026

Version 2026.03.01 – March 1, 2026This release improves subscription billing performance, introduces a new generic API request interface across SDKs, and enhances carrier integrations, including FedEx One Rate packaging and UPS GroundSaver updates.Core API Platform — New features and enhancementsGeneric API request interface — Added support for making arbitrary API requests across C#, Java, Node.js, PHP, and Ruby SDKs.Shipment invoice webhooks — Added shipment.invoice.updated webhook event for billed shipment disputes.Tracker reliability — Improved tracker lookup reliability to prevent temporary 404 errors immediately after shipment purchase.[FedEx] One Rate packaging — Added support for the FedEx Extra Small Box package type.[UPS] GroundSaver — Added delivery date calculations and improved rate handling.Core API Platform — Fixed issues[FedEx] Resolved billing address validation issue during carrier account registration.[UPS] Improved error messaging for blocked pickup requests.API request handling — Fixed encoding issues when inspecting invalid UTF-8 characters.Subscription processing — Fixed serialization issue affecting override threshold values.Core API Platform — Performance improvementsSubscription billing — Improved usage summary loading performance for all customers.EasyPost Enterprise — New features and enhancements[DHL] Consolidated and enhanced document template support.Document synchronization — Added automatic synchronization of included documents.Zone Carrier — Added tracking and waybill number generation capabilities.Document Builder — Improved global definitions and user experience.Log viewer — Updated log view to reflect browser-based timezone.Saturday delivery — Added Saturday delivery flag support.Profile menu — Added Wiki link to profile dropdown.Python editor — Improved autocomplete and value display functionality.EasyPost Enterprise — Fixed issues[FedEx] Fixed label generation and rate handling issues.Shipment processing — Addressed issues affecting printing and reference field handling.Authentication — Added buffer to API token expiration handling.

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02-22-2026

Version 2026.02.22 – February 22, 2026

Version 2026.02.22 – February 22, 2026This release enhances subscription plan management with immediate charge support and improves Royal Mail V3 account handling. Enterprise updates include document management enhancements, improved device integration, search improvements, and expanded carrier functionality.Core API Platform — New features and enhancementsSubscription management — Added support for charging subscription plans immediately upon creation.Royal Mail V3 — Added rate card support for specific accounts and resolved account creation restrictions to allow multiple users to access the same Royal Mail account number.Core API Platform — Fixed issuesFedEx claims — Improved claims query handling to include additional eligible shipments.EasyPost Enterprise — New features and enhancementsDocument Library — Added support for storing default text area attributes within document templates.Document Builder — Added dynamic font default configuration for text areas.[Canpar] Added service mapping and packaging type support.Device integration — Improved scale and scanner connectivity with enhanced device availability monitoring.Global search — Enhanced search performance and result count display.[UPS] Added Power of Attorney on File (POAOnFile) field to shipper model.EasyPost Enterprise — Fixed issues[FedEx] Fixed 5-inch label formatting issue.[FedEx] Improved international document handling reliability.[DPD Austria] Updated hazardous material validation messaging.Shipment processing — Resolved issues affecting multi-package handling and label modifications.Device integration — Improved error handling during weight retrieval and scale operations.

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02-15-2026

Version 2026.02.15 – February 15, 2026

Version 2026.02.15 – February 15, 2026This release adds Advanced Tracking subscription cancellation support, expands FedEx battery shipment capabilities, and enhances REST label functionality. Enterprise updates include new carrier enhancements and improvements to signature requirements and workflow reliability.Core API Platform — New features and enhancementsAdvanced Tracking — Added API support for canceling Advanced Tracking subscriptions.[FedEx] Battery shipment support — Expanded support for battery shipments, including hazmat classifications and Emergency Lithium Battery (ELB) marking on labels.REST label features — Added shipment- and package-level descriptions with character limits, delivery confirmation options, and alternate delivery address support.Core API Platform — Fixed issues[FedEx] Postal code validation — Improved handling of extended ZIP+4 formats for US domestic addresses.Melissa address verification — Corrected error code mappings for suite and apartment validation.Advanced Tracking — Fixed broken terms and conditions links and improved error state handling with a retry option.EasyPost Enterprise — New features and enhancements[Canpar] Added packaging type support and service mapping improvements.[UPS] Added signature requirement support.Workflow enhancements — Improved custom dialog behavior and delivery event handling.End of Day service — Improved error handling and messaging during report generation and printing.EasyPost Enterprise — Fixed issues[UPS] Resolved OAuth state parameter handling issue.Deployment reliability — Fixed an issue affecting versioned state deployment.Shipment processing — Addressed label printing, reference number handling, and dimension update issues in enterprise workflows.

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02-08-2026

Version 2026.02.08 – February 08, 2026

Version 2026.02.08 – February 08, 2026This release introduces new Group Management API endpoints, Advanced Shipping tenant onboarding enhancements, expanded Advanced Tracking capabilities, Purolator QuickShip support, UPS Premier rating support, and Happy Returns RMA QR code generation.Core API Platform — New Features and EnhancementsPurolator QuickShip – Added support for Purolator QuickShip service.UPS Premier – Added support for UPS Premier service level rating.Estafeta - Updated requirements for credentials for rating, buying, and tracking.Asendia USA – Added service level metadata mappings.FedEx – Updated carrier account credential handling for commercial invoice letterhead and signature image uploads.FedEx - Added create carrier account capability for FedEx Multi-Factor Authentication and added new client libraries.Advanced Shipping – Added email invitation support to streamline tenant onboarding.Advanced Tracking – Introduced enhanced onboarding flow with automatic opt-in support.Rate Adjustment Rules – Added ruleset duplication support, improved validation handling, and standardized payload casing.Insurance Claims – Removed label value requirement for claims CSV uploads.Group Management API – Added create, view, and list subgroup endpoints.ParcelForce - Decommissioned carrier.Core API Platform — Bug FixesUPS DAP Voiding – Prevented unnecessary alerts for expected void errors on pending shipments.Estafeta – Updated production and tracking endpoint configurations.FedEx Electronic Trade Documents – Corrected logic determining electronic submission handling.FedEx Dry Ice – Verified weight rounding behavior aligns with carrier specifications.Canada Post – Improved retry handling and shipment processing reliability during manifesting.SpeedX – Added error handling for non-JSON carrier responses.Royal Mail V3 & OmniParcel – Added missing predefined package types.Columbus Last Mile V2 – Resolved credential handling issue.Australia Post – Added predefined package mapping in rate requests.Gori – Improved error handling for non-JSON tracking responses.Advanced Tracking – Resolved mobile layout issues and preserved modal state across screen sizes.Tracker Retrieval – Updated HTTP response code for upstream tracking service errors.Forge Rate Adjustments – Corrected case sensitivity handling in hierarchical adjustment matching.USPS Zone Validation – Corrected zone parameter formatting for adjusted rate calls.Message Processing – Prevented retry loops caused by invalid consumer messages.Group Management – Added restrictions to prevent updates to default group names.Core API Platform — Performance ImprovementsAPI Response Times – Improved overall response performance through infrastructure optimizations.Database Queries – Enhanced shipment lookup and search query performance through improved indexing.EasyPost Enterprise — New Features and EnhancementsDHL Batch Rating – Added batch rating functionality with enhanced error handling.FedEx 5-Inch Labels – Added support for 5-inch label format with updated barcode and reference mappings.FedEx FSMS – Expanded international package delivery support with improved label field handling.DHL eCommerce API – Added API integration support with expanded document template coverage.UPS Paperless API – Added document upload capabilities for international shipments.Purolator QuickShip – Enabled QuickShip service within Enterprise platform.Document Library – Released expanded enterprise document set, including hazardous materials documentation.Document Builder – Added document library integration with file import support.Manifest Transmit Files – Added end-of-day manifest download capabilities.Version History – Added version tracking fields for improved system auditing.Custom Fields Indexing – Enhanced custom field indexing to improve integration performance.EasyPost Enterprise — Bug FixesDHL eCommerce – Corrected document template classification.Ceva – Improved error handling for rating API failures.End-of-Day Closeout – Fixed UI error display during closeout operations.Print & View Reports – Enhanced error messaging during report operations.Package Type Configuration – Corrected DHL and FedEx package mappings.ZPL Rendering – Fixed handling of empty graphics in label conversions.Version Control Locking – Improved version locking behavior.Patch Editor – Normalized line endings for consistent diff rendering.

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01-31-2026

Version 2026.01.31 – January 31, 2026

Version 2026.01.31 – January 31, 2026This release introduces percentage-based traffic routing for improved platform reliability, launches the Zonos Landed Cost API for international shipments, adds Maersk Parcel carrier support, expands rate adjustment ruleset management capabilities, and improves label upload performance.Core API Platform — New Features and EnhancementsZonos Landed Cost API – Introduced public endpoints for international landed cost estimates and guarantees, including customs and tax calculations.Maersk – Expanded service coverage with additional zip code support.Advanced Tracking Branding – Added API support for syncing brand customization with Advanced Tracking.Advanced Shipping – Added API key synchronization support for tenant setup.OAuth Pre-Consent Flow – Introduced a pre-consent authorization experience to streamline OAuth onboarding.Percentage-Based Traffic Routing – Implemented configurable cross-datacenter traffic routing with automatic fallback handling.FlexRate Adjustments – Enhanced rule editors with range support, improved error handling, and updated carrier option loading.Rate Adjustment Rulesets API – Added endpoints for creating and managing single and cumulative rate adjustment rulesets.Insurance Page – Released updated insurance experience.Group Management – Added delete and sub-account assignment capabilities to group management.Sub Account Groups API – Added group information to sub-account listing responses.Core API Platform — Bug FixesCanada Post – Improved manifest error handling to properly surface underlying errors.DoorDash – Corrected address formatting and improved timestamp parsing resilience.Manifest Processing – Prevented manifest submission for deactivated carrier accounts.Custom Rate Card Forms – Corrected disabled field submission handling during validation.Estafeta – Updated authentication handling to support customer-provided credentials.Zonos – Corrected carrier account ID handling during request processing.Core API Platform — Bug Fixes (Royal Mail V3)Address Validation – Added address line truncation to meet carrier validation limits.Manifest Processing – Improved manifest transaction handling and shipment update logic.Shipment Search – Expanded auto-manifest shipment search range to include updated shipments.Core API Platform — Performance ImprovementsLabel Uploads – Improved asynchronous label upload performance through optimized thread scheduling.EasyPost Enterprise — New Features and EnhancementsAPC – Added additional APC service types and improved service naming consistency.Maersk Parcel – Added carrier support within Enterprise platform.Global Ship – Updated integration handling and configuration behavior.Delivery Override Handling – Enhanced delivery window validation with transit day support.Custom Reporting – Added customer-specific report generation capabilities.Database File Service – Improved migration handling and SQL compatibility.SFTP Client Service – Added FTP and SFTP file transfer capabilities.Socket Service – Ported socket service to updated platform architecture.EasyPost Enterprise — Bug FixesCeva – Corrected JSON response handling for rating API.DHL – Fixed waybill template generation issues.FedEx FUSE – Corrected XML output formatting issues.Global Ship – Improved performance and resolved update instance handling issues.Billing Configuration – Corrected billing configuration behavior.Premier Pop-Up – Fixed UI functionality issue.UPS Signature Requirements – Added signature requirement support.AskBox – Corrected return value handling.EasyPost Enterprise — Performance ImprovementsDatabase Queries – Improved version control query performance.

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01-24-2026

Version 2026.01.24 – January 24, 2026

Version 2026.01.24 – January 24, 2026This release introduces enhanced Advanced Tracking capabilities with digital signature support, expanded carrier service coverage, new Enterprise SFTP file transfer functionality, improved FedEx shipment documentation handling, and corrected partial refund tax calculations.Core API Platform — New Features and EnhancementsLoomis Express – Updated carrier integration infrastructure to improve CI reliability.Maersk – Updated service level and zip code coverage, including expanded LAX zones and restored JFK coverage.Advanced Tracking Opt-In – Added digital signature support for Advanced Tracking enrollment and updated branding page design.Core API Platform — Bug FixesUSPS Tracking Routing – Corrected routing logic for UPS Mail Innovations tracking requests.UPS OAuth – Resolved cache handling issue in OAuth authorization flow.OSM V2 – Added required customs and sender information for military destination shipments.OnTrac V3 – Corrected selected rate calculation to return accurate fetched rates.Partial Refunds – Corrected tax amount storage to preserve accurate pre-tax and tax totals across transactions.EasyPost Enterprise — New Features and EnhancementsFedEx Shipment Documentation – Added support for custom non-label shipment documents with proper document classification handling.TForce Manifest Files – Added dimension unit-of-measure support for manifest file submissions.UPS Notification Locale – Added support for language and dialect mappings in shipment notifications.SFTP Client Service – Introduced FTP and SFTP file transfer capabilities for enterprise integrations.Zone Carrier Rate Management – Enhanced rate results with container-level data and improved multi-piece shipment currency handling.InfoShip Layout Types – Added support for existing 5-cell and new 3-column layout formats.Database File Service – Introduced structured file handling with automated purge support.EasyPost Enterprise — Bug FixesFedEx Sold-To Processing – Resolved error handling issues affecting Sold-To account processing.FedEx Bridge Testing – Corrected RMA handling and other issues identified during integration testing.FedEx FUSE Maintenance – Resolved conflicting maintenance event behavior in cluster processing.EasyPost Enterprise — Performance ImprovementsPurge Service – Added default scheduling configuration to improve automated cleanup performance.

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01-10-2026

Version 2026.01.10 – January 10, 2026

Version 2026.01.10 – January 10, 2026This release includes Shipment Purchase API performance improvements, a new Document Library API endpoint for generating shipping documents, expanded carrier capabilities across multiple integrations, reintroduced payment webhook events, and Enterprise-level tracking and workflow enhancements.Core API Platform — New Features and EnhancementsDoorDash – Removed platform-level phone number validation to support carrier-side per-user validation.SmartKargo – Added origin and destination country validation to enforce domestic U.S. shipments only.Royal Mail V3 – Added support for express return shipments.SpeedX – Enhanced tracking event status detail mapping for improved delivery visibility.DPD Netherlands – Improved classification logic for intra-EU versus international shipments.Asendia USA – Improved rate calculation accuracy.eBay CIP – Extended tax ID acceptance for shipments to Jersey and Guernsey.P2P Carrier Account – Added support for a new P2P carrier account type.DHL eCommerce Europe – Added support for a new carrier account type.DaiPost – Added API key authentication support for tracking services.Advanced Shipping – Added onboarding support for sub-accounts within Advanced Shipping.Payment Webhooks – Reintroduced `payment.created` and `payment.failed` webhook events for bank and credit card charges.Custom Rate Cards – Enhanced admin endpoints to display service type, MRC status, and geo group rate counts.Core API Platform — Bug FixesUPS WWE – Enabled ACL modification support for UPS WWE carrier accounts.Shipment Purchase API – Improved transaction handling to ensure database consistency during shipment purchases.Tracking Images – Resolved duplicate proof-of-delivery image uploads when identical images are received across multiple tracking polls.Java SDK – Improved deserialization handling for underscore-formatted fields.Core API Platform — Performance ImprovementsShipment Purchase API – Improved request handling and simplified retry logic to enhance performance.Custom Rate Card Queries – Improved admin dashboard performance through query optimization and pagination updates.EasyPost Enterprise — New Features and EnhancementsAramex – Added support for Saudi Arabia National Address Short Code requirements.FedEx – Added dangerous goods handling support for consolidated shipments.FedEx – Added print return label support for additional service codes.Project44 – Enhanced shipment tracking with origin location visibility.AutoClose Scheduling – Improved scheduling flexibility for auto-close timing and frequency.TForce – Enhanced transmit screen labeling for improved usability.FedEx FUSE – Added automated maintenance for fuel surcharge and tracking range updates.ICS Service – Introduced initial implementation of a new carrier service integration.SevenDays – Aligned ship contract data structures across platforms for consistency.Service Template – Updated service template with improved dependencies and documentation.EasyPost Enterprise — Bug FixesFedEx Consolidation – Resolved data schema issues affecting shipment consolidation.Project44 – Improved database sequence handling for performance stability.Shipment Type Processing – Resolved shipment type conversion issues affecting specific workflows.Batch Processing – Fixed workflow, combining logic, and warehouse filtering issues affecting batch operations.Reconciliation – Resolved processing issues affecting shipment verification.Formatting and Integration – Corrected formatting and integration issues affecting select customer workflows.UPSEP Labels – Removed unnecessary values for cleaner label output.Service Communication – Resolved serialization issues affecting host function results.

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