More variable recycliing [ci ski]
Strict types checking [ci skip]
Strict types checking (2) [ci skip]
Avoid create a memory frame when using global constants [ci skip]
Improved expresiveness [ci skip]
Improved expresiveness [ci skip]
Phalcon\Http\Request [ci skip]
Accessing extension globals [ci skip]
Using more expressive isset/fetch operators [ci skip]
cache [skip ci]