v0.9.0

This release brings several memory optimizations and small API improvements.

Memory optimizations comes in two forms:

• Generic optimizations to reduce the memory footprint of compiled rules, useful in all
  cases when the Scanner object is kept for a long time.
• The introduction of a new profile that can be set in the compiler, which will compile
  rules to optimize for memory usage rather than scanning speed.

boreal

Breaking changes:

• A memory pool was introduced to greatly reduce the memory footprint of compiled rules,
  notably when the same meta strings are used in all rules. This introduces two breaking
  changes:

  • The Metadata and MetadataValue objects are no longer re-exported from boreal-parser
    but are new types.
  • To retrieve strings and byte-strings from those objects, the new Scanner::get_bytes_symbol
    and Scanner::get_string_symbol must be used.

• A new CompilerBuilder object is introduced, to be able to configure a Compiler before
  any rule is added.

• Added UnwindSafe and RefUnwindSafe trait bounds on module datas:

  • add UnwindSafe traits to module private datas 43502307
  • add UnwindSafe traits for module user datas 56111d77

• MSRV is bumped from 1.65 to 1.66 825aaab

Added

• Add CompilerBuilder object to add modules and configure compiler profile: 261b11c2
• Add compiler profile to pick between memory usage or scanning speed: #167.
• Add compiler param to disable includes: #170.
• Update compatibility with YARA 4.5.2: #172.

Changed

• Add bytes intern pool to reduce memory consumption: #165.
• Guarantee Scanner is UnwindSafe and RefUnwindSafe: #171.

• Update memory benchmarks 68a1e046

• Update windows-sys dependency to version 0.59 ff996f77
• Update tlsh2 dependency to version 0.4.0 29097dc8

Fixed

• Fix unused warning on statistics in default features config: #168.

boreal-cli

Added

• Added option --profile to select memory or speed profile: c3a89c29.