@@ -25,7 +25,7 @@ with a development period, followed by a maintenance period.
2525Development
2626-----------
2727
28- Thefirst six-month period is divided into two phases:
28+ Thefull development period lasts six months and is divided into two phases:
2929
3030* *Development *: *Four months * to add new features and to enhance existing
3131 ones;
@@ -126,11 +126,12 @@ This results in very predictable dates and maintenance periods:
126126Backward Compatibility
127127----------------------
128128
129- Our `Backwards Compatibility Promise `_ is very strict and allows developers to
130- upgrade with confidence from one minor version of Symfony to the next one.
129+ Our:doc: `Backwards Compatibility Promise </contributing/code/bc >`_ is very
130+ strict and allows developers to upgrade with confidence from one minor version
131+ of Symfony to the next one.
131132
132133Whenever keeping backward compatibility is not possible, the feature, the
133- enhancement, or the bug fix will be scheduled for the next major version.
134+ enhancement or the bug fix will be scheduled for the next major version.
134135
135136.. note::
136137