2.6.0

[TheLastCicada]

2.6.0 Chia blockchain 2026-2-11

As this is a soft fork release, upgrading is strongly recommended before height 8,655,000.

What's Changed

Added

• Update error message for invalid IP and port format to clarify ipv6
• Work in Progress - increased preliminary support for V2 plot format
• Python 3.13 support
• Do not advertise a new transaction with zero cost

Changed

• Bump chia_rs to 0.35.2
• Bump chiavdf from 1.1.13 to 1.1.14
• Bump chiabip158 from 1.5.3 to 1.5.4
• Bump chiapos from 2.0.11 to 2.0.12
• Skip fetching additions and removals for non transaction blocks in FullNodeAPI's request_header_blocks
• Tolerate quote related cost mismatch for older nodes
• Use an adapted version of deficit round robin algorithm in TransactionQueue's pop
• Prioritize trusted peers in FullNodeAPI's send_transaction
• Make sure the costs and fees match when a peer notifies us of a new transaction that we saw already
• Remove unnecessary private key access from get_public_keys
• Set minimum to TLSv1.3
• Make sure the fee and cost specified in a NewTransaction match the ones from validating its spend bundle
• Change v1 plot phase-out
• Simplify tx_request_and_timeout and make it iterate over a dynamic list of peers with transactions
• Improve v2-plot support in plot-sync
• Don't allow, or harvest, v2 plots before hard fork activation
• Change Chia Root CA to expire 31 Dec 2037
• Default to single solver thread
• Relax PoS validation in weight proofs
• Advertise requested mempool transactions instead of sending them
• In TransactionQueue, prioritize peer queue transactions by fee per cost
• Eliminate rate limits and bans for exempt peer networks
• Updated GUI translations

Fixed

• Fix RPC key deletion endpoints to actually delete intended DBs
• Fix some typos in comments by @rocksload
• Some minor issues in comment by @deepdring
• Fix a large number of spelling issues in comments by @joemicky
• Fix typo for Timelord._check_for_new_sp comments by @wanziforever
• Change GetTransactions to use uint32 to support wallets with very large numbers of transactions
• Fix measurement of harvester lookup times for logging
• Fixed NFT minting RPC parameter (fixes [Bug] nft_mint_nft not setting royalty percentage properly in created nft #20360)
• Fixed CAT names on overview (fixes [Bug] offers tab no longer shows CAT names in v 2.5.7 #20297)

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This discussion was created from the release 2.6.0.