Add section about semantic versioning to README.md.

README.md

@@ -25,6 +25,7 @@
 - [Usage](#usage)
     - [General Syntax](#general-syntax)
     - [General Command Line Options](#general-command-line-options)
+- [Versioning](#versioning)
 
 <!-- markdown-toc end -->
 
@@ -259,6 +260,22 @@ The table below lists the supported common options, their descriptions and defau
 
 Note that numerical values for all *size* options (like `--thread-stack-size` in this table) may be specified by appending the corresponding multiplicative suffix (K for kilobytes, M for megabytes, G for gigabytes and T for terabytes).
 
+# Versioning
+
+For transparency and insight into its release cycle, and for striving to maintain backward compatibility, sysbench will be maintained under the Semantic Versioning guidelines as much as possible.
+
+Releases will be numbered with the following format:
+
+`<major>.<minor>.<patch>`
+
+And constructed with the following guidelines:
+
+* Breaking backward compatibility bumps the major (and resets the minor and patch)
+* New additions without breaking backward compatibility bumps the minor (and resets the patch)
+* Bug fixes and misc changes bumps the patch
+
+For more information on SemVer, please visit [http://semver.org/](http://semver.org/).
+
 [coveralls-badge]: https://coveralls.io/repos/github/akopytov/sysbench/badge.svg?branch=1.0
 [coveralls-url]: https://coveralls.io/github/akopytov/sysbench?branch=1.0
 [travis-badge]: https://travis-ci.org/akopytov/sysbench.svg?branch=1.0