v5.0.0 Release Notes

[antiochp]

• Release: https://github.com/mimblewimble/grin/releases/tag/v5.0.0

Hardfork 4

• HardFork4 (HardFork4 #3478)

DAA

RFC: https://github.com/mimblewimble/grin-rfcs/blob/master/text/0018-fix-daa.md

• fixDAA; implement wtema (fixDAA; implement wtema #3477)
• make min_wtema difficulty chain type dependent (make min_wtema difficulty chain type dependent #3502)
• fix calls to next_diff() in tests to use next height correctly (fix calls to next_diff() in tests to use next height correctly #3501)

Fees

RFC: https://github.com/mimblewimble/grin-rfcs/blob/master/text/0017-fix-fees.md

• Fixfees (Fixfees #3481)

PIBD

RFC [WIP]: https://github.com/jaspervdm/grin-rfcs/blob/pibd_messages/text/0000-pibd-messages.md

• enable PIBD_HIST capability by default (enable PIBD_HIST capability by default #3500)
• PIBD segment p2p messages (PIBD segment p2p messages #3496)
• More efficient serialization for bitmap segments (More efficient serialization for bitmap segments #3492)
• add segmenter for generating segments from txhashset with consistent rewind (add segmenter for generating segments from txhashset with consistent rewind #3482)
• PMMR segment creation and validation (PMMR segment creation and validation #3453)

Build/CI

• bump 5.0.0-beta.2 after fixing windows release script (bump 5.0.0-beta.2 after fixing windows release script #3508)
• refreshenv as part of windows release script (refreshenv as part of windows release script #3507)
• Bump version to 5.0.0-beta.1 (Bump version to 5.0.0-beta.1 #3505)
• we have no patch file and nothing to patch (we have no patch file and nothing to patch #3499)
• call refreshenv before running tests on windows (try and call refreshenv before running tests on windows #3498)
• CI: no directories in checksum file (CI: no directories in checksum file #3460)

Refactor/Cleanup/Code Quality

• use extend_from_slice when appending multiple hashes to hash file (use extend_from_slice when appending multiple hashes to hash file #3497)
• Disable merkle proofs for v2 get_block (Disable merkle proofs for v2 get_block #3487)
• default capabilities cleanup (default capabilities cleanup #3484)
• on_block_accepted logging and webhooks all the time (on_block_accepted logging and webhooks all the time #3486)
• Flexible peer filtering (Flexible peer filtering #3458)
• fix v2 conversion to ensure we provide blocks in correct format (fix v2 conversion to ensure we provide blocks in correct format #3465)
• Rename Floonet to Testnet (Rename Floonet to Testnet #3431)
• Define get_data_from_file function on ReadablePMMR trait (Define get_data_from_file function on ReadablePMMR trait #3464)
• migrate blocks in batches (rework db iterator impl) (migrate blocks in batches (rework db iterator impl) #3450)
• Cleanup usage of legacy bitmaps. (Cleanup usage of legacy bitmaps. #3455)
• use choose_multiple to clean get_peers() up (use choose_multiple to clean get_peers() up #3457)
• cleanup validate() no need to return kernel sums (cleanup validate() no need to return sums #3456)
• Refactor PMMR read methods into trait (Refactor PMMR read methods into trait #3454)
• Refactor p2p reader (Refactor p2p reader #3433)
• add test coverage around existing behavior for exists() and iter() (add test coverage around existing behavior for batch exists() and iter() #3452)
• refactor get_ser to use get_with internally (refactor get_ser() to use get_with() internally #3451)

Misc.

• Disable API v1 (Disable API v1 #3503)
• fix, no more FULL_NODE (fix, no more FULL_NODE #3504)
• reorg cache fix (reorg cache fix #3495)
• add peer capabilities to tui peers screen (add peer capabilities to tui peers screen #3490)
• cleanup mining stats (cleanup mining stats #3439)
• prefer outbound peers when syncing (consistently) ([5.0.x] outbound peer fix #3527)
• Update Client to v2 API (Update Client to v2 API #3524)
• Update grin-secp256k1zkp to 0.7.10 (Update grin-secp256k1zkp to 0.7.10 #3520)
• Update tokio, hyper versions (Update tokio, hyper versions #3514)
• Block migration flag ([5.0.x] Block migration flag #3513)

[chenrui333]

👋 looks like grin 5.0.0 failed to build on big_sur.

  --- stderr
  CRoaring/roaring.h:39:10: fatal error: 'stdlib.h' file not found
  CRoaring/roaring.h:39:10: fatal error: 'stdlib.h' file not found, err: true
  thread 'main' panicked at 'Unable to generate bindings: ()', /Users/brew/Library/Caches/Homebrew/cargo_cache/registry/src/github.com-1ecc6299db9ec823/croaring-sys-mw-0.4.5/build.rs:29:10