### Version
-1.6.0 (08/08/2017)
+1.6.1 (30/01/2018)
Introduction
__Frame Descriptor__
-3 to 15 Bytes, to be detailed in the next part.
-Most important part of the spec.
+3 to 15 Bytes, to be detailed in its own paragraph,
+as it is the most important part of the spec.
+
+The combined __Magic Number__ and __Frame Descriptor__ fields are sometimes
+called ___LZ4 Frame Header___. Its size vary between 7 and 19 bytes.
__Data Blocks__
-To be detailed later on.
+To be detailed in its own paragraph.
That’s where compressed data is stored.
__EndMark__
and also that the encoding/decoding process itself generated no distortion.
Its usage is recommended.
+The combined __EndMark__ and __Content Checksum__ fields might sometimes be
+referred as ___LZ4 Frame Footer___. Its size vary between 4 and 8 bytes.
+
__Frame Concatenation__
In some circumstances, it may be preferable to append multiple frames,
Version changes
---------------
+1.6.1 : introduced terms "LZ4 Frame Header" and "LZ4 Frame Footer"
+
1.6.0 : restored Dictionary ID field in Frame header
1.5.1 : changed document format to MarkDown