[discrete]
= Version history

[cols="1,1,1,1,3",options="header"]
|===
| Date
| Version
| Branch
| Author
| Modifications

| 08 May 2022
| 1.0
| Official
| Natalia Portillo
| Initial version

| 18 May 2022
| 2.0d1
| Draft
| Natalia Portillo
| Update version.

Add stub for new deduplication table.

Add stub for new media type.

| 04 Sep 2022
| 2.0d2
| Draft
| Rebecca Wallander
| Add flux data definitions.

| 15 Sep 2022
| 2.0d3
| Draft
| Natalia Portillo
| Fix some typos.

Add index continuation block.

Add track layout block.

| 15 Sep 2022
| 2.0d4
| Draft
| Natalia Portillo
| Define deduplication table version 2.

Define twin sector table.

| 16 Sep 2022
| 2.0d5
| Draft
| Natalia Portillo
| Define snapshot block.

| 16 Sep 2022
| 2.0d6
| Draft
| Natalia Portillo
| Define parent block.

| 16 Sep 2022
| 2.0d7
| Draft
| Natalia Portillo
| Rework flux block to use deduplication tables.

| 16 Sep 2022
| 2.0d7
| Draft
| Natalia Portillo
| Define bitstream block.

Add annex explaining the meaning and relationship between user, bitstream and flux data.

| 5 October 2025
| 2.0df
| Draft
| Natalia Portillo
| Final draft.

Move specification to Asciidoc.

Deprecate Compact Disc lead-in, first track pregap, lead-out, and floppy disk lead-out data types. They are stored as user data now (with negative and overflow sectors as appropiate).

Clarify and correct deduplication table specification.

Rework index version 3 specification.

Clarify negative and overflow blocks in deduplication tables.

Clarify deduplication table size type.

Clarify deduplication table sector status.

Add encrypted and decrypted sector status.

Add Aaru Metadata JSON.

Rework the flux workflow.
|===
