Detailed differences between Pubstack & Acquia

| PHP Modules | pubstack | Acquia | PR Env | | ------------- |:---------:| --------:| | PHP-FPM | v5.5.12 | v5.5.11 | | APCu Support | v4.0.4 | v4.0.2 | | OpenSSL | v1.0.1 | v0.9.8k | | ZLib Version | v1.2.3.4 | v1.2.3.3 | | libxml | v2.7.8 | v2.7.6 | | GD Version | 2.1.1-dev | v2.1.0 | | libJPEG | v8 | v6b | | Memcached | 1.4.13 | 1.4.5 | | PECL Memcache | 3.0.8 (rev 329835) | 3.0.8 (rev 329835) |

Apache Modules	pubstack	Acquia
Apache	v2.4.9	v2.2.14