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.

05-02-2026

Version 2026.05.02 – May 2, 2026

Version 2026.05.02 – May 2, 2026This release improves carrier integrations and enhances USPS address verification reliability.Core API Platform — New features and enhancements[Roadie] Added support for address name mapping and custom reference fields.Core API Platform — Fixed issuesDatabase connectivity — Improved connection stability to reduce stale connection errors.[USPS] Improved address verification reliability with automatic fallback handling when shipper-specific verification settings are unavailable.

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04-25-2026

Version 2026.04.25 – April 25, 2026

Version 2026.04.25 – April 25, 2026This release enhances Amazon Shipping with signature delivery confirmation for UK shipments, Windsor Framework support for shipments from Great Britain to Northern Ireland, and automatic label format conversion.Core API Platform — New features and enhancements[Amazon Shipping] Added signature delivery confirmation support for UK shipments with automatic rate filtering.[Amazon Shipping] Added Windsor Framework support for shipments from Great Britain to Northern Ireland with customs data validation.[Amazon Shipping] Added automatic label format conversion when the carrier returns a different format than requested.[DoorDash] Added shipment reference mapping to external delivery IDs.Tracking — Added carrier code to tracking detail responses.Tracking — Improved tracking request metadata to support more reliable carrier integrations.Core API Platform — Fixed issues[DoorDash] Fixed duplicate reference ID handling during shipment purchase operations.[Royal Mail V3] Added flat-rate card support for eligible accounts.Web application — Improved handling of network errors and map retry behavior.Core API Platform — Performance improvementsRating operations — Improved database connection handling to reduce stale connection errors.

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04-18-2026

Version 2026.04.18 – April 18, 2026

Version 2026.04.18 – April 18, 2026This release expands FedEx support for Channel Islands shipments, improves international shipment handling for multiple carriers, and enhances tracking and label reliability across the platform.Core API Platform — New features and enhancements[DPD/Interlink] Updated incoterm handling for international shipments.[Royal Mail V3] Updated service level names for improved clarity.[FedEx] Added support for Jersey and Guernsey addresses with customs handling for Channel Islands shipments.[Australia Post] Improved customs signer handling for international parcels.[UPS] Improved OAuth credential handling to better support rate limit management.Core API Platform — Fixed issues[FedEx] Improved handling for Hold at Location service options.[Royal Mail V3] Corrected timezone handling for label dates.[Columbus Last Mile V2] Added missing credential handling for shipment purchases.Tracking — Improved handling of malformed tracking responses.Tracking webhooks — Improved timeout recovery for webhook processing.Performance improvementsEnterprise lookups — Improved performance for high-traffic lookup operations.

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04-11-2026

Version 2026.04.11 – April 11, 2026

Version 2026.04.11 – April 11, 2026This release enhances carrier integrations with expanded DPD UK international shipping support.Core API Platform — New features and enhancements[DPD UK] International shipping — Added support for USD in customs currency validation for cross-border shipments.

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04-04-2026

Version 2026.04.04 – April 4, 2026

Version 2026.04.04 – April 4, 2026This release introduces new carrier integrations, expands USPS label capabilities, and improves rate shopping controls and tracking visibility across the platform.Core API Platform — New features and enhancementsAdded support for P2P carrier integration.Added support for eHub carrier integration.[USPS] Expanded QR code label generation to additional carrier account types.Rate shopping — Added controls to limit the number of carrier accounts used during rating operations.Tracking — Improved event logging for standalone trackers.Web application — Added GBP (British Pound) as a supported currency.Web application — Enabled sub-account management for users without existing child accounts.Core API Platform — Fixed issues[UniUni] Improved error messaging for shipment void operations.Improved handling of non-JSON error responses from carrier APIs.Resolved issues with carrier account entitlement handling.Core API Platform — Performance improvementsLogging — Reduced unnecessary error-level logs for improved system clarity.

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03-28-2026

Version 2026.03.28 – March 28, 2026

Version 2026.03.28 – March 28, 2026This release enhances carrier integrations with expanded UPS return capabilities, improved FedEx SmartPost handling, and added DHL Express importer configuration support. It also introduces standardized timestamp formatting across API responses.Core API Platform — New features and enhancements[UPS] Returns — Added support for return merchandise authorization (RMA) workflows, including QR code label generation.[DHL Express] Importer configuration — Added support for importer registration numbers in shipment requests.Core API Platform — Fixed issues[FedEx] SmartPost — Improved option handling for more consistent shipment behavior.[Happy Returns] Integration — Improved configuration handling for multi-account scenarios.Core API Platform — Performance improvementsAPI responses — Standardized timestamp formatting to ISO 8601 across supported endpoints.

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03-21-2026

Version 2026.03.21 – March 21, 2026

Version 2026.03.21 – March 21, 2026This release adds email invitations for Advanced Shipping onboarding, and improves tracking reliability and commercial invoice handling across multiple carriers.Core API Platform — New features and enhancementsAdvanced Shipping — Added email invitation support for onboarding new tenants.Hermes — Added Ireland-specific rate card support for applicable shipments.Core API Platform — Fixed issues[FedEx] Commercial invoices — Fixed filtering issues affecting signature and letterhead handling for US domestic shipments.[UPS] Commercial invoices — Updated currency handling to ensure correct values are used in invoice generation.[Royal Mail V3] Service levels — Updated service naming to clearly distinguish between similar service options.[Gori] Tracking — Improved handling of invalid timestamp values in tracking events.

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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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