In response, we have:

1. Achieved the predecessors (reference year 2010, 1995Q1 to 2019Q2) by renaming with an "_10" specifier, marking metadata as "discontinued", and segregating in the catalog. 
2. Created one-for-one replacements (reference year 2015).
3. Replaced the current-value series in the same way, since they may be subject to revisions apart from the reference year.
4. Refurbished mnemonics and metadata where necessary.
5. Transplanted global concept aliases.
6. Refurbished the catalog.

Notable properties (for full list, see Mnemonic 411):

• Currency reference year: Changed from 2010 to 2015
• Start date: Unchanged

The series reside in the historical catalog:

• Latvia » National Accounts » by Expenditure » Quarterly
• Latvia » National Accounts » by Expenditure » Quarterly » Discontinued » Ref 2010
• Latvia » National Accounts » by Value Added » Quarterly
• Latvia » National Accounts » by Value Added » Quarterly » Discontinued » Ref 2010

Please be aware that

Where necessary, we have renamed the replacement series to explicitly indicate that the inflation-adjustment method is chained prices, not constant prices. For such series, please see the attached concordance. You will need to amend baskets and other legacy retrievals.

• NAC· » NAH· = Chained prices (49 series)

• kbmedc_ilva_qna_20191206.xlsx