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# Frama-C release 22.0 (Titanium)
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## Sources
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- [frama-c-22.0-Titanium.tar.gz](downloads/frama-c-22.0-Titanium.tar.gz)
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## Manuals
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- [acsl-1.16](manuals/acsl-1.16.pdf)
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- [acsl-implementation](manuals/acsl-implementation-22.0-Titanium.pdf)
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- [aorai-example-22.0-Titanium.tgz](manuals/aorai-example-22.0-Titanium.tgz)
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- [aorai-manual](manuals/aorai-manual-22.0-Titanium.pdf)
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- [e-acsl-1.16](manuals/e-acsl-1.16.pdf)
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- [e-acsl-implementation](manuals/e-acsl-implementation-22.0-Titanium.pdf)
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- [e-acsl-manual](manuals/e-acsl-manual-22.0-Titanium.pdf)
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- [eva-manual](manuals/eva-manual-22.0-Titanium.pdf)
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- [metrics-manual](manuals/metrics-manual-22.0-Titanium.pdf)
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- [plugin-development-guide](manuals/plugin-development-guide-22.0-Titanium.pdf)
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- [rte-manual](manuals/rte-manual-22.0-Titanium.pdf)
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- [user-manual](manuals/user-manual-22.0-Titanium.pdf)
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- [wp-manual](manuals/wp-manual-22.0-Titanium.pdf)
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## Main Changes
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### Kernel
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- OCaml version greater than or equal to 4.08.1 required.
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- introduce check-only annotations for requires, ensures, loop invariant and lemmas
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- `\from` now accepts `&v` expressions
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- add option `-print-config-json`, to output Frama-C configuration data in JSON format
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- new option `-explain`, which provides help messages for options used on the command line
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- add option `-print-cpp-commands`, to print the preprocessing commands used by Frama-C
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- support for C11's `_Noreturn` and `_Thread_local` specifiers
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- allows for axiomatic blocks-like extensions
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### Aorai
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- Ya automata can set auxiliary variables during a transition, and use such variables in subsequent guards.
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### E-ACSL
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- support of bitwise operators
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- support of `\separated`
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- support of `complete` and `disjoint` behaviors
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- support of logical array comparisons
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### Eva
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- easier setup of dynamic allocation builtins: new option `-eva-alloc-builtin` to configure uniformly their behavior (instead of mapping each `malloc`/`calloc`/`realloc` function to the corresponding builtin), and new annotation `eva_allocate` to locally override the global option
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- new builtins for trigonometric functions `acos`, `asin` and `atan` (and their single-precision version `acosf`, `asinf`, `atanf`)
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- improved automatic loop unroll (`-eva-auto-loop-unroll` option) on loops with several exit conditions, conditions using equality operators, temporary variables introduced by the Frama-C normalization or `goto` statements
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### Markdown Report
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- update Sarif output to 2.1.0 and prettier URI
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### Variadic
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- the generated code is now compilable and compatible with E-ACSL
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### WP
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- upgraded Why3 backend (requires why3 1.3.3)
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- support of the `\initialized` ACSL predicate
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- support for generalized check-only ACSL annotations
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- added support for Why3 interactive prover (Coq)
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- new tactic Bit-Test range
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- memory model hypotheses warnings are more precise
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- new experimental option: `-wp-check-memory-model` to automatically check memory model hypotheses
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- new warning `pedantic-assigns`. WP needs precise `assigns ... \from ...` specification about out pointers to generate precise proof hypotheses |