Update changelog

CHANGES.md

@@ -6,13 +6,15 @@
 
 * `augur.io.read_metadata`: A new optional `dtype` argument allows custom data types for all columns. Automatic type inference still happens by default, so this is not a breaking change. [#1252][] (@victorlin)
 * `augur.io.read_vcf` has been removed and usage replaced with TreeTime's function of the same name which has improved validation of the VCF file.
+* export v2: Add flag `--metadata-columns` to specify metadata columns to export without using them as colorings. [#1384][] (@joverlee521)
 
 ### Bug Fixes
 
 * filter, frequencies, refine: Speed up reading of the metadata file. [#1252][] (@victorlin)
 * traits: Previously, columns with only numeric values were treated as numerical data. These are now treated as categorical data for discrete trait analysis. [#1252][] (@victorlin)
 
 [#1252]: https://github.com/nextstrain/augur/pull/1252
+[#1384]: https://github.com/nextstrain/augur/pull/1384
 
 ## 24.0.0 (22 January 2024)