21 March 2017 - Royal Mail announced its annual stamp price rises in late February and they take effect from 27 March 2017.
Single value £2.55
The Europe 20g and Worldwide 10g rate of £1.05 rises, and requires the £1.17 'Sunrise Red' or vermillion
The Worldwide 20g rate rises from £1.33 to £1.40 requiring a new 'Dark Pine Green' or grey-green
The Europe 100g rate of £1.52 rises to £1.57 requiring a new 'Tarragon Green' or yellow-olive stamp
The World 100g rate of £2.25 rises to £2.27, so a new 'Harvest Gold' or ochre stamp
The Large Letter 100g rate for Europe rises from £2.45 to £2.55
which is a new stamp in a new colour, though doubtless catalogue editors will choose a different description to Royal Mail's "Garnet Red"
In early April, a new series of definitive printings was made available with most of the March printings being on backing paper with the type 2 Security Printing (SBP2).
As of 26 April some of these were already in Post Offices, suggesting that quantities initially distributed to branches were not very high. Although Royal Mail sent them to collectors on standing order (unlike the SBP2 reprints), it may be that the printings on plain paper will be the scarcer.