Documentation Changelog
This page logs significant updates to the Singpass developer documentation. For API spec changes (FAPI 2.0 migration), refer to the Changelog.
August 2026
14 Aug
Technical Specifications
Client Assertion guide — iat/exp corrected to JSON numbers; compact JWT sample updated with correct payload (removed erroneous code field, added jti); validator tool description corrected (jwk → kid)
14 Aug
Integration Guide
Userinfo Request — iat field type corrected to Number; warning added that DPoP proof must include ath claim and htu must be /fapi/userinfo
14 Aug
Integration Guide
Handling the Redirect — successful redirect now correctly states three query parameters (code, state, iss)
14 Aug
Integration Guide
Parsing the ID Token — dead anchor #the-sub_account-claim corrected to #the-sub_attributes-claim
14 Aug
Migration Guides
Myinfo v4 migration guide — userinfo comparison table corrected from GET /userinfo to GET /fapi/userinfo
14 Aug
Getting Started
New page: Singpass Button Design Specification — button design specifications for developers and designers
14 Aug
Getting Started
New page: Singpass Brand Guidelines — brand guidelines consolidated into Getting Started
14 Aug
Products
Singpass Button Guidelines page removed — content moved to Singpass Button Design Specification under Getting Started
14 Aug
Products
Logo Download and Brand Guidelines page removed — content moved to Singpass Brand Guidelines under Getting Started
3 Aug
Pricing
Pricing page updated — Singpass Login is now priced by authentication form factor (QR/Passkey, Username/Password, SMS OTP); SFV pricing section added; Partner Support FAQ link added; references to the in-portal FAQ tab removed
3 Aug
Integration Guide
authentication_context_message allowable character set widened — now accepts all printable ASCII except <, >, \, and the backtick; max 100 characters unchanged
3 Aug
Pricing
Pricing guide updated — all four tabs on the Pricing Plan page now listed, including the Pricing Examples tab
3 Aug
SDP — App Management
Managing Drafts guide updated — "Saving..." indicator and "Draft saved" label for auto-save described
July 2026
28 Jul
SDP — App Management
App name must be 100 characters or fewer — documented in App name & purpose and Create Staging App
28 Jul
SDP — App Management
Client External ID is read-only and cannot be changed after app creation — callout added to Edit Staging App and Edit Production App
28 Jul
Integration Guide
Code samples use the staging endpoint (stg-id.singpass.gov.sg) — callout added to Authorization Request and Token Exchange
28 Jul
Technical Concepts
Do not pin Singpass TLS leaf certificates — warning added to OpenID Provider Configuration
28 Jul
Migration Guides
Duplicate app recommended as preferred migration path — updated in Myinfo v3 migration guide and Myinfo v4 migration guide
15 Jul
SDP — App Management
New page: Managing Drafts — auto-save, 30-day expiry, 7-day email reminder
14 Jul
Technical Specifications
Legacy Singpass Authentication API documentation retired — superseded by FAPI 2.0 Integration Guide
June 2026
16 Jun
Migration Guides
Login/Myinfo v5 migration guide expanded with guidance on replacing custom scheme URLs with Universal Links / App Links
15 Jun
Getting Started
New page: App Logo requirements — PNG, 256–512px, max 200KB, no padding. Effective August 2026
10 Jun
Getting Started
User Journey — 4th template added for Login with Mandatory Face Verification (high-risk, submit via partner support portal)
Breaking change (24 Jun): The userinfo endpoint URL has changed to /fapi/userinfo. Update your integration if you are using a hardcoded path.
May 2026
28 May
Technical Concepts
6 May
Integration Guide
Userinfo request fully rewritten for FAPI 2.0 — DPoP header, ath claim, person_info structure
April 2026
21 Apr
Technical Concepts
Client Assertion expanded with additional JWT payload requirements; DPoP minor corrections
20 Apr
Integration Guide
Error code corrected to upstream_dependency_error in Token Exchange and Userinfo Request
18 Mar
SDP — Billing
New page: How to view entity transactions
March 2026
24 Mar
Migration Guides
Myinfo v4 migration guide — client assertion incorrectly required code parameter; fixed
5 Mar
Migration Guides
Login/Myinfo v5 migration guide — user.identity scope clarified as available to all app types, not Login only
February 2026
23 Feb
Technical Concepts
DPoP guide substantially expanded — full JWT structure, per-request requirements, key lifecycle rules
13 Feb
Integration Guide
authentication_context_type full values table added — CPF, Banking, Other FIs, Telcos, generic
10 Feb
Technical Specifications
FAPI 2.0 documentation published — Integration Guide, Technical Concepts, Migration Guides. All new apps require FAPI 2.0. Existing integrations must migrate by 31 December 2026.
6–24 Feb
Testing
Myinfo test personas updated across multiple rounds — refreshed persona data and CSV download
Last updated
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