# BitcoBoost Core - Recommended Release (v1.1.0)

**Ticker: BCBO.** This release is **required for every node**, exchanges included.

## Why this release
From block **20,118** (12 September 2026) the network recalculates the difficulty at **every block** (LWMA-1,
90-block window). Nodes built before this release — **v1.0.0** and **27.1.0** — do not implement this rule: they stop
at block **20,117** and cannot follow the chain. Verified on 25 September 2026 by syncing each binary from scratch:
v1.0.0 stops at 20,117; v1.1.0 (Linux and Windows) reaches the current tip.

## Downloads
- Linux (x86_64): `bitcoboost-core-1.1.0-x86_64-linux-gnu.tar.gz`
- Windows (x64): `bitcoboost-core-1.1.0-win64.zip`
- Checksums: `SHA256SUMS`  |  Signature (GPG detached): `SHA256SUMS.asc`
- Public signing key: `bitcoboost-release-pubkey.asc` (fingerprint `B953191753915A465728EFCD8739ECBDF90D266B`, same key as v1.0.0)

## Verify
1. `sha256sum -c SHA256SUMS`
2. `gpg --import bitcoboost-release-pubkey.asc`
3. `gpg --verify SHA256SUMS.asc SHA256SUMS`

## Consensus / integration parameters
- Max supply: **21,010,999.9769 BCBO** (21,000,000 halving schedule + launch slow-start)
- Block time: 600 s | Difficulty: LWMA-1 every block, 90-block window, since block 20,118
- Block subsidy: 50 BCBO, halving every 210,000 blocks (first halving at block 212,001)
- Slow start: blocks 1-1,000 = 1 BCBO, 1,001-2,000 = 10 BCBO
- Founder reward: 5% (2.5 BCBO) on blocks 2,001-209,999; carved out of the 50 (miner gets 47.5)
- Algorithm: X16RV2 | Addresses: bb1q (segwit v0), bb1z (quantum-safe, witness v2) | Coinbase maturity: 100 blocks
- Ports: P2P 38210 | RPC 18332 | Network magic: 0xBB 0x16 0x06 0x26
- Source: https://github.com/Bitcoboost/bitcoboost-core (tag v1.1.0)

Building from source remains the canonical, verifiable path.