[release] OONI Probe engine 3.29.0

[hellais]

Release information

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Version Number: 3.29.0

Expected Release date: 4 February 2026

Summary of changes:

• Support for anonymous credentials: OTFcreds: Activity 3.2 Integrate the client library into the OONI Probe client backend#918
• Sunset psiphon tunnel support: chore: sunset psiphon support #1762

Link to latest nightly:

Release checklist

For extended documentation about the process, see probe-cli's releasing.md.

Psiphon

• probe-cli: pin to the latest staging-client commit using ./script/go.bash get -u -v: feat: upgrade psiphon deps #1767
• probe-cli: make sure ./script/go.bash list -json ./cmd/ooniprobe does not include any pinned package in psiphon's go.mod or otherwise ask Psiphon developers whether this is fine: feat: upgrade psiphon deps #1767

Go version

• probe-cli: possibly update .github/workflows/gobash.yml
• probe-cli: update the GOVERSION file if needed: feat: upgrade psiphon deps #1767
• probe-cli: update the toolchain line inside of go.mod: feat: upgrade psiphon deps #1767
• probe-cli: update the Go version mentioned in the Readme.md file: feat: upgrade psiphon deps #1767
• probe-cli: update version specified in TH's Makefile: feat: upgrade psiphon deps #1767

Android

• probe-cli: update NDKVERSION, and MOBILE/android/ensure if needed: chore: upgrade build-tools version #1768

Dependencies other than Psiphon

• probe-cli: ensure no dependency bumped its major version number using https://github.com/icholy/gomajor
• probe-cli: update dependencies with ./script/go.bash get -u -v -d ./...
• probe-cli: update C dependencies: chore: upgrade cdeps to latest version #1769

Updating assets and definitions

• probe-cli: run ./script/updateminipipeline.bash
• probe-cli: update github.com/ooni/probe-assets dependency: https://github.com/ooni/probe-assets/releases/tag/v0.30.0
• probe-cli: update bundled certs (using ./script/go.bash generate ./...): chore: update bundled certs #1770
• probe-cli: update user-agent at internal/model/http.go

Maintenance

• probe-cli: sync stunreachability targets with snowflake (see ./internal/stuninput)
• probe-cli: take a look at go report card
• probe-cli: address any outstanding TODO in the diff since last release (or create an issue for it)
• probe-cli: try to address all the issues marked as "releaseBlocker"
• all: check whether to update the release documentation

QA and alpha releasing

• probe-cli: check warnings emitted by gosec runs
• probe-cli: ./script/go.bash test -race -count 1 ./... must pass locally
• probe-cli: tag an alpha release: https://github.com/ooni/probe-cli/releases/tag/v3.29.0-alpha
• probe-cli: create the release/X.Y branch: https://github.com/ooni/probe-cli/tree/release/3.29
• probe-cli: make sure all workflows are green in the release/X.Y branch
• team: communicate availability of an alpha release

Releasing proper

• probe-cli: update internal/version/version.go in release/X.Y to be a stable release
• probe-cli: tag a new stable version in the release/X.Y branch
• probe-cli: update internal/version/version.go in master branch to be the next alpha: chore: bump version to 3.30.0-alpha #1775

Publishing stable packages

• probe-engine: run ./script/autoexport.bash: https://github.com/ooni/probe-engine/releases/tag/v0.35.0
• debian: publish packages
• android: publish packages
• oohelperd: publish docker container

Post-release communication

• iThena: notify about new release
• Update the #ooni-probe-releases slack channel:

@here 🚀 🏎️ OONI Probe Engine v[VERSION_NUMBER] has been released.

[hellais]

We should discuss during roadmapping if it's feasible to have these features be supported.

[hellais]

We concluded we are going to include support for anonymous credentials in the next release, but not enable it. Psiphon is also going to be disabled.