stellar/stellar-core

View on GitHub

Reference implementation for the peer-to-peer agent that manages the Stellar network.

Stars: 3.3k
Forks: 1.1k
Open beginner issues: 1
Indexed issues: 257
Avg merge: 3d 16h
Merged PRs (30d): 14

Dominant language: C++
License: No license data
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

Open All

257 open issues indexed

soroban_env_host_p28 in build_rust.bat Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 90/100

stellar/stellar-core#5451 · 1 comment · Opened Sep 10, 2026
Move build-private.yml to namespace Open

enhancement

stellar/stellar-core#5441 · 1 assignee · Opened Sep 1, 2026
Make LCM generation deterministic in "network externalizes empty-tx-set on missing value" test Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

stellar/stellar-core#5437 · 1 comment · Opened Aug 28, 2026
Fix `isBadSeq` validation logic Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

stellar/stellar-core#5431 · Opened Aug 26, 2026
O3.1.2: speed-up triggerNextLedger in overlay v2 by caching signatures ahead of time Open

stellar/stellar-core#5430 · 1 assignee · Opened Aug 25, 2026
O3.1.2: measure current performance of overlay-v2 against Phase1 goals Open

stellar/stellar-core#5429 · 1 comment · 1 assignee · Opened Aug 25, 2026
O3.1.2 - Overlay experiments assuming known leader schedules and densely connected top tier topology Open

enhancement

stellar/stellar-core#5400 · 1 assignee · Opened Jul 31, 2026
O3.1.2 - Milestone 3: 10k SAC, 6k OZ, 3k Swap, 31 orgs, 600ms blocks, 2s E2E, 2y retention time Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

stellar/stellar-core#5389 · 2 comments · Opened Jul 27, 2026
O3.1.2 - Milestone 2: 5k SAC, 4k OZ, 1.5k Swap, 19 orgs, 1s blocks, 2.5s E2E, 6m retention time Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

stellar/stellar-core#5388 · Opened Jul 27, 2026
O3.1.2 - Milestone 1: 3k SAC, 2k OZ, 750 Swap, 10 orgs, 2s blocks, 5s E2E, 3m retention time Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

stellar/stellar-core#5387 · Opened Jul 27, 2026
O3.1.1 - Milestone 2b: Raise Network Limits Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

stellar/stellar-core#5385 · Opened Jul 27, 2026
O3.1.1 - Milestone 2a: Limit Increase Readiness Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

stellar/stellar-core#5384 · Opened Jul 27, 2026
O3.1.1 - Milestone 1b: 200 SAC TPS readiness evaluation and proposal Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

stellar/stellar-core#5383 · Opened Jul 27, 2026
O3.1.1 - Milestone 1a: Weekly mainnet load test operationalized Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

stellar/stellar-core#5382 · Opened Jul 27, 2026
O3.1.2 - Simplex experiment to reduce latency Open

enhancement

stellar/stellar-core#5376 · 1 assignee · Opened Jul 24, 2026
O3.1.2 - Apply path optimization Open

enhancement

stellar/stellar-core#5373 · 1 assignee · Opened Jul 24, 2026
Have validators run NTP server sync on their nodes Open

enhancement

stellar/stellar-core#5372 · 1 assignee · Opened Jul 24, 2026
Item fetcher performance improvement Open

enhancement

stellar/stellar-core#5371 · 1 assignee · Opened Jul 24, 2026
Resume stalled balloting immediately on tx set arrival Open

bug

stellar/stellar-core#5370 · 1 assignee · Opened Jul 24, 2026
Enable parallel transaction sets download in mainnet Open

enhancement

stellar/stellar-core#5369 · 1 assignee · Opened Jul 24, 2026
Enable nomination timer in mainnet Open

enhancement

stellar/stellar-core#5368 · 1 assignee · Opened Jul 24, 2026
Investigate futurenet validators failing to bootstrap correctly for several hours Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

stellar/stellar-core#5317 · 1 comment · Opened Jun 4, 2026
Testing, hardening and enabling the quorum intersection checker v2 by default Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

stellar/stellar-core#5315 · 2 comments · Opened Jun 3, 2026
build-linux (gcc, current) CI: cc1plus killed while compiling LedgerCloseMetaStreamTests.o Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

stellar/stellar-core#5308 · Opened Jun 2, 2026
The stellar/quickstart Docker image for v26.1.0 has not been published yet. Please consider publishing it simultaneously with each release to avoid delays for node operators. Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

stellar/stellar-core#5279 · Opened May 19, 2026
# of host modules in core is increasing faster due to more frequent protocol releases Open

enhancement

stellar/stellar-core#5267 · 10 comments · 1 assignee · Opened May 12, 2026
Audit `Config::adjust()` logic Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

stellar/stellar-core#5244 · 2 comments · Opened Apr 23, 2026
Persist all SCP messages Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

stellar/stellar-core#5227 · Opened Apr 15, 2026
Audit Metrics Use Open

enhancement

stellar/stellar-core#5217 · 1 comment · 1 assignee · Opened Apr 9, 2026
Consider changes for supporting uptime monitoring Open

enhancement

stellar/stellar-core#5207 · 1 assignee · Opened Apr 7, 2026
Allow validators to use the same config file Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

stellar/stellar-core#5176 · Opened Mar 12, 2026
Remove `StatementContext` Open

cleanup

Difficulty 3/5 1-2 days Newbie friendliness 45/100

stellar/stellar-core#5171 · 2 comments · Opened Mar 10, 2026
Consider use of std::atomic_load and std::atomic_store on shared pointers. Open

cleanup

Difficulty 4/5 3-5 days Newbie friendliness 35/100

stellar/stellar-core#5169 · Opened Mar 10, 2026
Provide idempotent way to initialize history archive Open

enhancement

stellar/stellar-core#5167 · 1 reaction · 2 assignees · Opened Mar 9, 2026
Provide idempotent way to initalise database Open

enhancement

stellar/stellar-core#5166 · 2 comments · 1 reaction · 2 assignees · Opened Mar 9, 2026
Cleanup how sorobanConfig is passed to TransactionFrame::apply Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

stellar/stellar-core#5164 · Opened Mar 7, 2026
Conditionally track live restores in LedgerTxn Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

stellar/stellar-core#5156 · Opened Feb 25, 2026
Emit # of disk read entries as a metric Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

stellar/stellar-core#5112 · 2 comments · Opened Jan 29, 2026
Deprecate Postgres in favor of SQLite Open

enhancement

stellar/stellar-core#5110 · 1 assignee · Opened Jan 27, 2026
The MinimumSorobanNetworkConfig::MAXIMUM_ENTRY_LIFETIME value is too high for testnet Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

stellar/stellar-core#5076 · 1 comment · Opened Dec 17, 2025
mitigate arch-specific behaviour in JIT (stack-depth checking at least) Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

stellar/stellar-core#5066 · 1 comment · Opened Dec 13, 2025
Audit uses of duplicate bucket iteration code Open

cleanup

Difficulty 4/5 3-5 days Newbie friendliness 35/100

stellar/stellar-core#5048 · Opened Dec 4, 2025
Make sure XDRCereal overrides roundtrip Open

enhancement

stellar/stellar-core#5041 · 1 comment · 1 assignee · Opened Dec 2, 2025
Unified fuzz-harness interface Open

enhancement

stellar/stellar-core#5027 · 2 comments · 1 assignee · Opened Nov 19, 2025
Harden TTL load paths Open

bug

stellar/stellar-core#5020 · 1 assignee · Opened Nov 12, 2025
Unify code between `LedgerManagerForBucketTests` and `LedgerManager` Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

stellar/stellar-core#5011 · Opened Nov 7, 2025
Investigate randomized testing for eviction and restoration related events Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

stellar/stellar-core#5005 · Opened Nov 5, 2025
Replace background eviction scan with simplified blocking scan Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

stellar/stellar-core#5001 · Opened Nov 5, 2025
CI Backtrace Does Not Work Open

bug

stellar/stellar-core#4944 · 1 comment · 1 assignee · Opened Sep 30, 2025
Core restarts are slow and result in catchup due to core in-memory state populating on startup Open

enhancement

stellar/stellar-core#4902 · 1 comment · 1 assignee · Opened Aug 25, 2025

stellar/stellar-core

Get new issues in your inbox