Amendment 1 to Recommendation ITU-T G.994.1 (2012) contains the following additions and changes:
- Codepoints for the support of upstream FDPS for G.993.5 and full G.993.5-friendly G.993.2 operation.
- Codepoint for the support of pilot length multiple of 4 in full G.993.5-friendly G.993.2 operation.