nippy/CHANGELOG.md

v2.6.0-RC1 / 2014 Mar 12

Welcoming feedback on any issues, etc.!

New

• Low-level fns added: freeze-to-out!, thaw-from-in! for operating directly on DataOutputs/DataInputs.
• Data size optimizations for some common small data types (small strings/keywords, small integers).
• New test suite added to ensure a 1-to-1 value->binary representation mapping for all core data types. This will be a guarantee kept going forward.
• New :skip-header? freeze option to freeze data without standard Nippy headers (can be useful in very performance sensitive environments).
• New benchmarks added, notably a Fressian comparison.
• Added experimental freezable? util fn to main ns.
• Added some property-based simple-check roundtrip tests.

Changes

• BREAKING: the experimental Compressable-LZMA2 type has changed (less overhead).
• DEPRECATED: freeze-to-stream!, thaw-from-stream! are deprecated in favor of the more general freeze-to-out!, thaw-from-in!.
• DEPRECATED: :legacy-mode options. This was being used mainly for headerless freezing, so a new headerless mode is taking its place.
• Public utils now available for custom type extension: write-bytes, write-biginteger, write-utf8, write-compact-long, and respective readers.
• Now distinguish between BigInteger and BigInt on thawing (previously both thawed to BigInts). (mlacorte).
• Moved most utils to external encore dependency.

v2.5.2 / 2013 Dec 7

New

• Test Serializable objects at freeze time for better reliability.
• Thaw error messages now include failing type-id.

Changes

• Don't cache serializable?/readable? for types with gensym-style names (e.g. as used for anonymous fns, etc.).
• Failed serialized/reader thaws will try return what they can (e.g. unreadable string) instead of just throwing.

v2.5.1 / 2013 Dec 3

New

• Added experimental inspect-ba fn for examining data possibly frozen by Nippy.

Changes

• Now throw exception at freeze (rather than thaw) time when trying to serialize an unreadable object using the Clojure reader.

v2.4.1 → v2.5.0

• Refactored standard Freezable protocol implementations to de-emphasise interfaces as a matter of hygiene, Ref. http://goo.gl/IFXzvh.
• BETA STATUS: Added an additional (pre-Reader) Serializable fallback. This should greatly extend the number of out-the-box-serializable types.
• ISeq is now used as a fallback for non-concrete seq types, giving better type matching pre/post freeze for things like LazySeqs, etc.
• Experimental: add Compressable-LZMA2 type & (replaceable) de/serializer.

v2.3.0 → v2.4.1

• Added (alpha) LZMA2 (high-ratio) compressor.
• Bump tools.reader dependency to 0.7.9.

v2.2.0 → v2.3.0

• Huge (~30%) improvement to freeze time courtesy of Zach Tellman (ztellman).

v2.1.0 → v2.2.0

• Dropped :read-eval?, :print-dup? options.

Thanks to James Reeves (weavejester) for these changes!:

• Switched to tools.reader.edn for safer reader fallback.
• Added fast binary serialization for Date and UUID types.
• Added fast binary serialization for record types.

v2.0.0 → v2.1.0

• Exposed low-level fns: freeze-to-stream!, thaw-from-stream!.

• Added extend-freeze and extend-thaw for extending to custom types:

• Added support for easily extending Nippy de/serialization to custom types:

  (defrecord MyType [data])
  (nippy/extend-freeze MyType 1 [x steam] (.writeUTF stream (:data x)))
  (nippy/extend-thaw 1 [stream] (->MyType (.readUTF stream)))
  (nippy/thaw (nippy/freeze (->MyType "Joe"))) => #taoensso.nippy.MyType{:data "Joe"}
  

v1.2.1 → v2.0.0

• MIGRATION NOTE: Please be sure to use lein clean to clear old (v1) build artifacts!

• Refactored for huge performance improvements (~40% roundtrip time).

• New header format for better error messages.

• New taoensso.nippy.tools ns for easier integration with 3rd-party tools.

• DEPRECATED: freeze-to-bytes -> freeze, thaw-from-bytes -> thaw. See the new fn docstrings for updated opts, etc.

• Added pluggable compression support:

  (freeze "Hello") ; defaults to:
  (freeze "Hello" {:compressor taoensso.nippy.compression/snappy-compressor})
  
  ;; The :compressor value above can be replaced with nil (no compressor) or
  ;; an alternative Compressor implementing the appropriate protocol
  

• Added pluggable crypto support:

  (freeze "Hello") ; defaults to:
  (freeze "Hello" {:encryptor taoensso.nippy.encryption/aes128-encryptor}
  
  ;; The :encryptor value above can be replaced with nil (no encryptor) or
  ;; an alternative Encryptor implementing the appropriate protocol
  

  See the README for an example using encryption.