Changelog

This page tracks the different protocol versions and corresponding Nix versions, as well as when certain Operations have been introduced or deprecated.

Different “function signatures” are tracked on the Operations page as well.

Nix version protocol#

In commit be64fbb501  support was droped for protocol versions older than 1.10. This happened when the protocol was between 1.17 and 1.18 and was released with Nix 2.0. So this means that any version of Nix 2.x can’t talk to Nix 0.x.

Operation History#

Notes: Ops that start with * have been removed. Protocol version that ends with * was bumped while adding that operation. Otherwise protocol version referes to the protocol version at the time the operation was added (so only at the next protocol version can you assume the operation is present/removed/obsolete since it was added/removed/obsoleted between protocol versions).

Protocol version change log#

• 1.01 f3441e6122  Initial Version
• 1.02 c370755583  Use build hook
• 1.03 db4f4a8425  Backward compatibility check
• 1.04 96598e7b06  SetOptions buildVerbosity
• 1.05 60ec75048a  SetOptions useAtime & maxAtime
• 1.06 6846ed8b44  SetOptions buildCores
• 1.07 bdf089f463  QuerySubstitutablePathInfo narSize
• 1.08 b1eb252172  STDERR_ERROR exit status
• 1.09 e0bd307802  ImportPath not supported on versions older than 1.09
• 1.10 db5b86ef13  SetOptions build-use-substitutess
• 1.11 4bc4da331a  open connection reserveSpace
• 1.12 eb3036da87  Implement QuerySubstitutablePathInfos
• 1.13 2754a07ead  Implement QueryValidDerivers
• 1.14 a583a2bc59  open connection cpu affinity
• 1.15 d1e3bf01bc  BuildPaths buildMode
• 1.16 9cee600c88  QueryPathInfo ultimate & sigs
• 1.17 ddea253ff8  QueryPathInfo returns valid bool
• 1.18 4b8f1b0ec0  Select between AddToStoreNar and ImportPaths
• 1.19 ba20730b3f  Implement QueryMissing
• 1.20 cfc8132391  Don’t send activity and result logs to old clients
• 1.21 6185d25e52  AddToStoreNar uses TunnelLogger for data
• 1.22 d38f860c3e  Implement QueryDerivationOutputMap and obsolete QueryDerivationOutputs
• 1.23 4c0077a07d  AddToStoreNar uses FramedSink/-Source for data
• 1.24 5ccd94501d  Allow trustless building of CA derivations
• 1.25 e34fe47d0c  New implementation of AddToStore
• 1.26 c43e882f54  STDERR_ERROR serialize exception
• 1.27 3a63fc6cd5  QueryValidPaths substitute flag
• 1.28 27b5747ca7  BuildDerivation returns builtOutputs
• 1.29 9d309de0de  BuildDerivation returns timesBuilt, isNonDeterministic, startTime & stopTime
• 1.30 e5951a6b2f  Bump version number for DerivedPath changes
• 1.31 a8416866cf  RegisterDrvOutput & QueryRealisation send realisations as JSON
• 1.32 fe1f34fa60  Implement AddMultipleToStore
• 1.33 35dbdbedd4  open connection sends nix version
• 1.34 a4604f1928  Implement BuildPathsWithResults
• 1.35 9207f94582  open connection sends trusted option
• 1.36 226b0f3956  Implement AddPermRoot
• 1.37 1e3d811840  Serialize BuildResult send cpuUser & cpuSystem