Release v21.1.0 · stellar/stellar-core

What's Changed

Fix #3810, re-enable checkStellarCoreMajorVersionProtocolIdentity by @graydon in #4321
Fix #4324 by switching io_context in merge, also reduce contact with app by @graydon in #4329
Change BucketIndex log chatter from CLOG_INFO to CLOG_DEBUG by @graydon in #4322
Add scripts/check-soroban-env-versions.sh by @graydon in #4313
Remove SQL from integration docs by @ThomasBrady in #4330
Deprecate admin guide by @ElliotFriend in #4312
Move tracy FrameMark macro so it occurs during replay as well as online consensus by @graydon in #4308
Update security notes by @marta-lokhova in #4338
Disable tracy memory tracking when asan enabled by @graydon in #4340
Bump tracy to v0.10 by @marta-lokhova in #4328
Bump tracy fork by @marta-lokhova in #4344
Remove predicate-based peer dropping mechanism by @marta-lokhova in #4323
Un-downgrade tracy-client-sys accidentally caused by feature selection by @graydon in #4346

Add new time sliced overlay survey by @bboston7 in #4275
Track SCP latencies in milliseconds for overlay survey by @bboston7 in #4334
Shift survey ledger number validity condition slightly to allow lagging nodes to respond by @marta-lokhova in #4347
Update network survey script to support V2 survey by @bboston7 in #4342
Add build steps for Raspberry Pi by @SirTyson in #4327
add an option to run overlay operations in the background by @marta-lokhova in #4258
overlay: perf and error handling improvements by @marta-lokhova in #4343
Add support for tracy memory tracking by @graydon in #4272
Add sorobaninfo option that dumps current upgradeable settings as a ConfigUpgradeSet by @sisuresh in #4341
Add tx to restore wasm blob to get-settings-upgrade-txs by @sisuresh in #4351
Proposed phase3 Soroban pubnet settings upgrade. by @dmkozh in #4335
postgresql backend deprecation warning by @ThomasBrady in #4348

Full Changelog: v21.0.0...v21.1.0rc1