v1.7.0-beta.0

better-auth

❗ Breaking Changes

• feat(two-factor)!: add OTP enablement and discriminated response (#9057)

  enableTwoFactor now accepts a method parameter ("otp" | "totp", default "totp") and returns a discriminated response with a method field.

  method: "otp"

  • Sets twoFactorEnabled: true immediately.
  • Returns { method: "otp" }.
  • Requires otpOptions.sendOTP to be configured on the server; rejects with OTP_NOT_CONFIGURED otherwise.

  method: "totp" (default)

  • Returns { method: "totp", totpURI, backupCodes }.
  • Rejects with TOTP_NOT_CONFIGURED if totpOptions.disable is set.

  Breaking changes

  • Removed skipVerificationOnEnable: use method: "otp" for immediate activation, or the standard TOTP verification flow.
  • Response shape changed: enableTwoFactor includes a method field in the response ("otp" or "totp").

Features

• feat(stripe): support Stripe SDK v21 and v22 (#9084)

Bug Fixes

• fix: incorrect operationId in password reset callback endpoint (#9072)
• fix(open-api): correct get-session nullable schema for OAS 3.1 (#8389)
• fix(stripe): omit quantity for metered prices in checkout and upgrades (#8926)

For detailed changes, see CHANGELOG

@better-auth/sso

❗ Breaking Changes

• fix(sso)!: harden SAML response validation (InResponseTo, Audience, SessionIndex) (#9055)

  Breaking Changes

  • allowIdpInitiated now defaults to false — IdP-initiated SSO (unsolicited SAML responses) is disabled by default. Set saml.allowIdpInitiated: true to restore the previous behavior. This aligns with the SAML2Int interoperability profile which recommends against IdP-initiated SSO due to its susceptibility to injection attacks.

  Bug Fixes

  • InResponseTo validation was completely non-functional — The code read extract.inResponseTo (always undefined) instead of samlify's actual path extract.response.inResponseTo. SP-initiated InResponseTo validation now works as intended in both ACS handlers.
  • Audience Restriction was never validated — SAML assertions issued for a different service provider were accepted without checking the <AudienceRestriction> element. Audience is now validated against the configured samlConfig.audience value per SAML 2.0 Core §2.5.1.
  • SessionIndex stored as object instead of string — samlify returns sessionIndex from login responses as { authnInstant, sessionNotOnOrAfter, sessionIndex }, but the code stored the whole object. SLO session-index comparisons always failed silently. The correct inner sessionIndex string is now extracted.

  Improvements

  • Extracted shared validateInResponseTo() and validateAudience() into packages/sso/src/saml/response-validation.ts, eliminating ~160 lines of duplicated validation logic between the two ACS handlers.
  • Fixed SAMLAssertionExtract type to match samlify's actual extractor output shape.

Bug Fixes

• fix(sso): unify SAML response processing and fix bugs (#9097)

For detailed changes, see CHANGELOG

@better-auth/oauth-provider

Features

• feat(oauth): add private_key_jwt client authentication (RFC 7523) (#8836)

For detailed changes, see CHANGELOG

auth

Bug Fixes

• fix(cli): handle extends and mid-path wildcards in tsconfig paths (#9032)

For detailed changes, see CHANGELOG

Contributors

Thanks to everyone who contributed to this release:

@bytaesu, @gustavovalverde, @Oluwatobi-Mustapha, @ramonclaudio

Full changelog: v1.6.2...v1.7.0-beta.0