> ## Documentation Index
> Fetch the complete documentation index at: https://docs.semgrep.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# May 2021

> May 30, 2021 · 2 min read

## Version 0.52.0

This version also includes release notes for Semgrep version 0.53.0.

### Additions

* Alpha support for C#
* Metavariables match both a constant variable occurrence and that same constant value ([#3058](https://github.com/semgrep/semgrep/pull/3058))

### Fixes

* OCaml: fix useless-else false positives by generating appropriate AST for if without an else.
* JavaScript/TypeScript: Propagate constant definitions without declaration

## Version 0.51.0

### Additions

* Keep track of and report rule parse time in addition to file parse time
* v0 of opt-in, anonymous aggregate metrics

### Fixes

* JavaScript/TypeScript: allow the deep expression operator `<... ...>` in expression statement position, for example:

```

ARG = [$V];

...

<... $O[$ARG] ...>; // this works now

```

* PHP arrays with dots inside parse
* Propagate constants in nested lvalues such as y in x\[y]
* Experimental support for C#

### Changes

* Show log messages from semgrep-core when running semgrep with --debug
* By default, targets larger than 1 MB are now excluded from Semgrep scans. The new option --max-target-bytes 0 restores the previous behavior.
* Report relative path instead of absolute when using --time

## Version 0.50.1

### Additions

* JS/TS: Infer global constants even if the const qualifier is missing ([#2978](https://github.com/semgrep/semgrep/pull/2978))
* PHP: Resolve names and infer global constants in the same way as for Python

### Fixes

* Empty yaml files do not crash
* Autofix does not insert newline characters for patterns from semgrep.live ([#3045](https://github.com/semgrep/semgrep/pull/3045))
* Autofix printout is grouped with its own finding rather than the one below it ([#3046](https://github.com/semgrep/semgrep/pull/3046))
* Do not assign constant values to assigned variables ([#2805](https://github.com/semgrep/semgrep/issues/2805))
* A --time flag instead of --json-time which shows a summary of the timing information when invoked with normal output and adds a time field to the json output when --json is also present

### Changes

* Moved some debug logging to verbose logging
* \$...ARGS can now match an empty list of arguments, just like ... ([#3177](https://github.com/semgrep/semgrep/issues/3177))
* JSON and SARIF outputs sort keys for predictable results
* .git/ directories are ignored when scanning
* External Python API (semgrep\_main.invoke\_semgrep) now takes an optional OutputSettings argument for controlling output
* json\_time has moved to OutputSettings.output\_time, this and many other OutputSettings arguments have been made optional

### Removed

* `--json-time` flag in favor of `--json` + `--time`