What changed
- Added GitHub Actions CI for Go 1.26, including MySQL-backed race tests, generated migration bindata checks, Linux amd64 builds, and release artifact uploads.
- Replaced Travis-era release and deployment plumbing with GitHub Releases, publishing the Linux chainquery binary and SHA-256 checksum directly on tagged releases.
- Hardened block processing against stalls with bounded RPC, database, socket notification, and alert paths, plus incomplete-head cleanup and recovery coverage.
- Improved reorg handling and added Slack app logging for reorg depth and affected heights.
- Removed legacy autoupdate, Travis webhook, Twilio, and deprecated Slack webhook support.
- Added and regenerated database migrations and SQLBoiler models for block processing state, transaction counts, purchases, signed supports, index cleanup, and unused column removal.
- Improved chain sync, claim trie, support, output, mempool, notification, and LBCD/sockety integration behavior across several long-running production fixes.
- Expanded regression coverage for reorgs, block processor recovery, transaction pipeline ordering, router behavior, config parsing, RPC/script handling, generated bindata, and build metadata.
Full Changelog: v2.5.6...v2.6.0