What's Changed

• Op executesc add datastore for t15 by @sydhds in https://github.com/massalabs/massa/pull/3009
• Change endorsements by @adrien-zinger in https://github.com/massalabs/massa/pull/3004
• Unify balances by @AurelienFT in https://github.com/massalabs/massa/pull/3012
• Add test for set bytecode and docs. by @AurelienFT in https://github.com/massalabs/massa/pull/3055
• Feature: save and update the ledger hash on disk by @Eitu33 in https://github.com/massalabs/massa/pull/3019
• Fix spelling and force it in CI. by @AurelienFT in https://github.com/massalabs/massa/pull/3068
• Remove useless transfer balance. by @AurelienFT in https://github.com/massalabs/massa/pull/3065
• Executed ops hash and debug logs by @Eitu33 in https://github.com/massalabs/massa/pull/3064
• Fix ExecutedOps extend XOR computing. by @Eitu33 in https://github.com/massalabs/massa/pull/3075
• Abi datastore 2 by @sydhds in https://github.com/massalabs/massa/pull/3032
• Consensus: fix test inter cycle batch finalization by @gterzian in https://github.com/massalabs/massa/pull/3047
• Add storage costs. by @AurelienFT in https://github.com/massalabs/massa/pull/3043
• Op datastore robustify by @sydhds in https://github.com/massalabs/massa/pull/3088
• Bump massa-sc-runtime version to 0.8.1 by @sydhds in https://github.com/massalabs/massa/pull/3091
• Improve storage perf in Execution by @damip in https://github.com/massalabs/massa/pull/3077
• Initial lightweight serialization && deserialization for endorsements… by @sydhds in https://github.com/massalabs/massa/pull/3060
• Robustify operations propagation by @gterzian in https://github.com/massalabs/massa/pull/3086
• Improve entry err msg by @damip in https://github.com/massalabs/massa/pull/3101
• Increase endorsement count to 16 by @damip in https://github.com/massalabs/massa/pull/3102
• Burn coins on async messages creation. by @Eitu33 in https://github.com/massalabs/massa/pull/3103
• Prepare testnet 15 by @damip in https://github.com/massalabs/massa/pull/3010
• Fix storage costs. by @AurelienFT in https://github.com/massalabs/massa/pull/3105
• Change storage constants by @AurelienFT in https://github.com/massalabs/massa/pull/3107
• Use assert_eq! instead of assert! by @sydhds in https://github.com/massalabs/massa/pull/3106
• correct bootstrap order by @damip in https://github.com/massalabs/massa/pull/3109
• Fix bootstrap test by @AurelienFT in https://github.com/massalabs/massa/pull/3117
• Debug sequencer by @damip in https://github.com/massalabs/massa/pull/3120

Full Changelog: https://github.com/massalabs/massa/compare/TEST.14.8...TEST.15.0