Cashu Nutshell v0.12.1: Performance and Stability Improvements

• "This release includes a ton of performance and stability improvements!"
• Disclaimer: Cashu is still experimental and not production-ready.

What's new

NUTs

• Dynamic change output amounts (NUT-08 update).

Mint

• Use httpx library instead of requests for asynchronous operations.
• Transition from using DB locks to asyncio locks (for compatibility with RaspberryPi systems and LNbits).

Wallet

• Huge performance increase thanks to db optimizations.
• Multimint swaps in Nutshell! Enter cashu swap or use the wallet API.
• Option to mint tokens of a specific denomination (for headless operation).
• Option to send existing token denominations without a /split (for high-frequency payments).
• Improve wallet REST API.

Changes

• [Wallet] Bugfix/enable-funding-multiple-mints by @callebtc in #210
• add CONTRIBUTING.md by @callebtc in #211
• Allow to set maximum peg in/out for mint by @sihamon in #209
• Assert mint_private_key is available at startup by @xphade in #208
• [Mint] add trace logs by @callebtc in #213
• more traces by @callebtc in #214
• Mint/moremore_traces by @callebtc in #215
• more logging by @callebtc in #216
• add transactions and locking for certain operations by @Semisol in #217
• Chore: make format by @callebtc in #218
• Refactor Compat and Database for LNbits comaptibility by @callebtc in #219
• [Mint] Fix balance views for Postgres by @callebtc in #222
• [Mint] rewrite lnbits backend with httpx by @callebtc in #230
• Mint API: Check ?amount is within a sensible range by @AngusP in #226
• [Mint] LNBits backend refactor httpx by @AngusP in #234
• db: postgres cast int to bigint by @callebtc in #231
• Add secp256k1 deps to dockerfile by @ebrakke in #235
• [Wallet] Define responses for API by @sihamon in #233
• Catch all exceptions in wallet API by @sihamon in #220
• Implement dynamic amount of tokens for change by @xphade in #223
• [Wallet] API: optional amount in InvoiceResponse by @callebtc in #236
• update .env example to reflect latest flags by @callebtc in #238
• fix typo by @callebtc in #239
• Allow to start wallet API by cashu --daemon by @sihamon in #243
• [Wallet] Allow minting of specific amounts by @callebtc in #248
• [Wallet] send without split by @callebtc in #249
• [Wallet] DB optimization for faster payments by @callebtc in #250
• update readme by @callebtc in #251
• [Mint] Fix: check keyset id in mint and allow custom split amounts for LIGHTNING=False by @callebtc in #253
• [Wallet] balance: await wallet.load_proofs() by @callebtc in #254
• [Wallet] no async for deserialization functions by @callebtc in #255
• Use m̶u̶l̶t̶i̶p̶r̶o̶c̶e̶s̶s̶i̶n̶g̶ asyncio locks instead of db locks by @callebtc in #256
• [Wallet] store public keys of each keyset by @callebtc in #165
• Add multi-mint swap to CLI and API by @sihamon in #212
• bump version to 0.12.1 by @callebtc in #258
• Wallet: fix wallet pubkey migration start by @callebtc in #259

New Contributors

• @xphade made their first contribution in #208
• @Semisol made their first contribution in #217
• @AngusP made their first contribution in #226
• @ebrakke made their first contribution in #235

Full Changelog: 0.12.0...0.12.1

GitHub Repo