# Versions

The Trusted Twin API changelog lists changes to the Trusted Twin API.

# 3.06.00 (20-9-2023)

Minor improvements to the batch functionality.
Minor improvement to the role and user objects.

# 3.05.00 (6-09-2023)

Added the batch functionality and the following endpoints:

Minor improvements to the role and user objects.

# 3.04.00 (10-08-2023)

Minor improvements.

# 3.03.00 (12-07-2023)

Added the scan_twins endpoint.
Minor improvements to the Timeseries service.

# 3.02.00 (26-06-2023)

Added the "activity" field to the user object. The "activity" field lets you enable the User Activity Log for a given user.
Minor improvements to the Doc object.
Minor improvements to the History service.
Minor fixes to the role object.

# 3.01.00 (15-06-2023)

Improvement to the Notifications service:

you can now set notifications events to be triggered upon deletion of a Ledger Entry.

Minor changes to the Notifications service:

the "topic" value must match the regular expression(opens new window) ^[0-9A-Za-z\\-]{3,48}$.

Minor changes to the Stickers service:

"color" value must the regular expression(opens new window) ^[0-9A-Za-z\\-]{3,48}$.

Minor improvements to the Stickers functionality.
Minor fixes to the Notifications functionality.

# 3.00.01 (13-04-2023)

Minor improvements to the Notifications service.

# 3.00.00 (03-04-2023)

Added built-in functions.
Changes to the Ledger object:

the "entry_created_ts", "entry_updated_ts" and "value_changed_ts" are now only available at the Entry level,
the "history", "timeseries", "publish", and "value" attributes are only returned in the response if they have a value.

Minor improvements to the Notifications and Stickers services.
Minor changes to the role object.

# 2.13.00 (20-01-2023)

Added the get_users endpoint.
Added the get_twin_ledger_entry_value endpoint.

# 2.12.00 (22-12-2022)

Added the Notifications functionality to the Stickers service.
Added the "geography" and "geometry" types for the "properties" column in the Indexes service and for the "measurement" column in the Timeseries service.
Minor changes to the Indexes service.
Minor changes to the Timeseries service.
Minor changes to the Ledger Entry.
Minor improvements to the get_twin_ledger_entry_history endpoint.

# 2.11.00 (8-12-2022)

Minor system improvements.

# 2.10.00 (21-11-2022)

Added the "identity" field to role rules.
Minor fixes to the User Token functionality.

# 2.09.00 (10-11-2022)

Improvements to update_twin_ledger_entry:

you can now update the "history", "publish", and "timeseries" attributes.
Minor improvements to the History service:
if "history" attribute is set to null (through add_twin_ledger_entry and update_twin_ledger_entry endpoint), the History service is not enabled.
Minor improvements to the Notifications service:
if not provided, the default value of the "expires" parameter is 604800 seconds (7 days).

# 2.08.00 (20-10-2022)

Added the update_twin_ledger_entry_value endpoint.
Minor improvements to the Timeseries database.
Minor fixes to the Notifications service.

# 2.07.00 (13-10-2022)

Added the Stickers service and the following endpoints:

Added the User Token functionality and the following endpoints:

Added Trace functionality and the following endpoint:

trace

Improvements to update_timeseries_table:

you can now update the names of the "measurements" and "dimensions" columns,
you can now add new "measurements" and "dimensions" columns to an existing Timeseries table.

Improvements to update_indexes_table:

you can now update the names of "properties" columns,
you can now add new "properties" columns to an existing Indexes table,
you can now update the templates of existing properties.

Minor improvements to the Doc object.

# 2.06.00 (15-09-2022)

Major system refactor.

Added the X-TrustedTwin custom header.
Timeseries and Indexes databases are now also accessible through domain names (database_id.database.trustedtwin.com).

# 2.05.02 (21-07-2022)

Added the following endpoints related to usage:

# 2.05.01 (18-07-2022)

Minor fixes to the Ledger Entry.

# 2.05.00 (12-07-2022)

Added the Notifications service and the following endpoints:

Added the who_am_i endpoint.

Added the "include" field to the Ledger Entry.

Added the "timestamp" field to the Timeseries database.

# 2.04.00 (21-06-2022)

Minor fixes to the History service.

# 2.03.02 (01-06-2022)

Minor improvements to the Indexes database.

# 2.03.01 (25-05-2022)

Minor fixes to the Indexes database.

# 2.03.00 (20-05-2022)

Added the Indexes* service and the following endpoints:

The Indexes* service needs to be enabled for your account. Please contact hello@trustedtwin.com for more details.

# 2.02.00 (28-04-2022)

Added the History service and the following endpoint:

Added the get_twin_ledger_entry_history endpoint.

Added the get_log endpoint.

Minor fixes to the Timeseries database.

# 2.01.02 (13-04-2022)