[#7957](https://github.com/yarnpkg/yarn/pull/7957) - [**Maël Nison**](https://twitter.com/arcanis)

- Generates relative paths when calling `yarn set version`

  [#7931](https://github.com/yarnpkg/yarn/pull/7931) - [**Maël Nison**](https://twitter.com/arcanis)

- Throws an exception when the `.yarnrc.yml` file is invalid yaml

  [#7931](https://github.com/yarnpkg/yarn/pull/7931) - [**Maël Nison**](https://twitter.com/arcanis)

## 1.22.0

Lucas Pardue <******@****.***> <******@****.***>
Luke Bayes <******@****.***>
Lydia Kats <******@****.***>
Maciej Małecki <******@****.***> <******@****.***>
Maël Nison <nison******@****.***> <******@****.***>
MaleDong <******@****.***> <******@****.***>
Malte-Thorben Bruns <******@****.***>
Malte-Thorben Bruns <******@****.***> <******@****.***>

Prism.languages.bison = Prism.languages.extend('c', {});

Prism.languages.insertBefore('bison', 'comment', {
	'bison': {
		// This should match all the beginning of the file
		// including the prologue(s), the bison declarations and
		// the grammar rules.
		pattern: /^[\s\S]*?%%[\s\S]*?%%/,
		inside: {
			'c': {
				// Allow for one level of nested braces
				pattern: /%\{[\s\S]*?%\}|\{(?:\{[^}]*\}|[^{}])*\}/,
				inside: {
					'delimiter': {

Prism.languages.bison=Prism.languages.extend("c",{}),Prism.languages.insertBefore("bison","comment",{bison:{pattern:/^[\s\S]*?%%[\s\S]*?%%/,inside:{c:{pattern:/%\{[\s\S]*?%\}|\{(?:\{[^}]*\}|[^{}])*\}/,inside:{delimiter:{pattern:/^%?\{|%?\}$/,alias:"punctuation"},"bison-variable":{pattern:/[$@](?:<[^\s>]+>)?[\w$]+/,alias:"variable",inside:{punctuation:/<|>/}},rest:Prism.languages.c}},comment:Prism.languages.c.comment,string:Prism.languages.c.string,property:/\S+(?=:)/,keyword:/%\w+/,number:{pa...

Evan Plaice <******@****.***>
Simon Zünd <******@****.***>
simon3000 <******@****.***>
Marcos Casagrande <******@****.***>
Ruwan Geeganage <******@****.***>
Maël Nison <nison******@****.***>
Gerson Niño <******@****.***>
freestraws <******@****.***>
Daniel Beckert <******@****.***>
Rivaldo Junior <******@****.***>
Rongjian Zhang <******@****.***>

<h2>Comments</h2>
<pre><code>// Single-line comment
/* Multi-line
comment */</code></pre>

<h2>C prologue and Bison declarations</h2>
<pre><code>%{
  #include &lt;stdio.h>
  #include &lt;math.h>
  int yylex (void);
  void yyerror (char const *);
%}

%define api.value.type {double}
%token NUM
%union { char *string; }
%%
%%</code></pre>

<h2>Grammar rules</h2>
<pre><code>%%
exp:

- Guillaume Chau ([@Akryum](https://github.com/Akryum))
- Haoqun Jiang ([@sodatea](https://github.com/sodatea))
- Marcel Lindig ([@nullpilot](https://github.com/nullpilot))
- Maël Nison ([@arcanis](https://github.com/arcanis))
- Pavan Kumar Sunkara ([@pksunkara](https://github.com/pksunkara))
- Tao Wei ([@taoweicn](https://github.com/taoweicn))
- Thomas Kint ([@tkint](https://github.com/tkint))

":"],
L36:		"\r\n\tNUM ",
L37:		["c", [
L38:			["delimiter", "{"],
L39:			["bison-variable", ["$$"]], ["operator", "="],
L40:			["function", "f"], ["punctuation", "("],
L41:			["bison-variable", ["$3"]], ["punctuation", ","],
L42:			["bison-variable", ["$4"]], ["punctuation", ")"], ["punctuation", ";"],
L43:			["bison-variable", ["@$"]], ["punctuation", "."], "first_column ", ["operator", "="],
L44:			["bison-variable", ["@1"]], ["punctuation", "."], "first_column", ["punctuation", ";"],
...

  bison \
  php5 \
  libcurl4-openssl-dev \
  libssl-dev \
  libxml2-dev \
  unzip \
  zlib1g-dev \
  pkg-config \
  && apt-get clean

# Install other dependencies
RUN wget http://ftp.gnu.org/gnu/bison/bison-2.6.4.tar.gz -O /var/local/bison-2.6.4.tar.gz
RUN cd /var/local \
  && tar -zxvf bison-2.6.4.tar.gz \
  && cd /var/local/bison-2.6.4 \
  && ./configure \
  && make \

  && apt-get clean

# Install other dependencies
RUN ln -sf /usr/include/x86_64-linux-gnu/gmp.h /usr/include/gmp.h
RUN wget http://ftp.gnu.org/gnu/bison/bison-2.6.4.tar.gz -O /var/local/bison-2.6.4.tar.gz
RUN cd /var/local \
  && tar -zxvf bison-2.6.4.tar.gz \
  && cd /var/local/bison-2.6.4 \
  && ./configure \
  && make \
  && make install

# Install composer
RUN curl -sS https://getcomposer.org/installer | php