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Legacy Features Deprecation Schedule

Looker will occasionally deprecate existing product features. In some cases, a deprecated feature will be designated as a legacy feature, which allows it to continue functioning for all customers who were already using the feature while removing it from the product for all new users.

New features that replace legacy features are simpler, more reliable, and/or more useful than the deprecated features they replace. To take advantage of the improved functionality of a new feature that replaces a legacy feature, customers first need to migrate off the legacy feature. Once that transition is complete, the legacy feature can be disabled via the Admin Legacy Features setting.

Please note that internal resources may be required when you are migrating off legacy features. The schedule below provides a timeline showing when current legacy features have been or will be formally removed from the Looker product.

Current Legacy Features

Legacy Feature Deprecated Disabled Removed Status Resources
Treat the datatype:datetime as a timestamp on BigQuery connections. 7.14 7.16 7.20 Active datatype documentation

Previously Removed Legacy Features

Legacy Feature Deprecated Disabled Removed Status Resources
Old field chooser 3.18 3.38 Removed in Looker 3.38
Field labels can override view label 3.16 3.44 3.46 Removed in Looker 3.46 Transition Guidelines
Leading period in field names 3.16 3.44 3.46 Removed in Looker 3.46 Transition Guidelines
Uppercase labels in download and chart configurations 3.16 3.44 3.46 Removed in Looker 3.46 Transition Guidelines
Send email from looker@looker.com 3.32 3.44 3.46 Removed in Looker 3.46 Transition Guidelines
Default Redshift PDT distribution style EVEN 3.36 3.44 3.46 Removed in Looker 3.46 Transition Guidelines
$$ substitution 3.46 3.48 3.50 Removed in Looker 3.50 Transition Guidelines
Joins declared in views 3.46 3.48 3.50 Removed in Looker 3.52 Transition Guidelines
LookML “scoping” parameter 3.46 3.48 3.50 Removed in Looker 3.52 Transition Guidelines
Legacy drill behavior 3.42 4.8 4.22 Removed in Looker 4.22 Transition Guidelines
Add unscoped field name alias 3.52 3.54 3.56 Removed in Looker 4.6 Transition Guidelines
Unsafe Liquid functions 3.48 4.20 5.0 Removed in Looker 5.0 Transition Guidelines
Non-symmetric aggregates 3.16 4.20 5.0 Removed in Looker 5.0 Transition Guidelines
Row limit only 3.16 4.20 5.0 Removed in Looker 5.0 Transition Guidelines
LookML decimals parameter and int field type 3.38 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
Deprecated LookML parameters 3.16 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
Legacy Oracle security settings 3.50 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
Single row table headers 3.52 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
JSON numbers as strings 3.52 4.0 & 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
Coerce dimensions to measures 3.54 5.0 5.4 Removed in Looker 5.4
Default query result persistence is five minutes 4.2 5.0 5.4 Removed in Looker 5.4
YAML-based LookML for modeling 4.4 4.10 & 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
Implicit dashboard default timezone 4.10 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
Allow unlimited downloads that might crash Looker 4.14 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
User-based dev mode 4.16 4.16 & 5.0 5.4 Removed in Looker 5.4 Transition Guidelines
Allow creating legacy API-only users 4.0 4.0 & 4.20 5.12 Removed in Looker 5.12 Transition Guidelines
Allow calling legacy query API 5.2 5.6 5.12 Removed in Looker 5.12 Transition Guidelines
Allow the access_filter_fields parameter 4.14 5.22 6.0 Removed in Looker 3.38 Transition Guidelines
Native derived tables convert dates and yesnos to strings 5.22 6.0 6.6 Removed in Looker 6.6 Transition Guidelines
Legacy visualizations 6.0 6.0 6.6 Removed in Looker 6.6 Transition Guidelines
Show full field name 6.8 6.8 6.12 Removed in Looker 6.12 Transition Guidelines
Legacy rendering 6.4 6.6 6.18 Extended from Looker 6.10 to Looker 6.18. Removed in 6.18. Transition Guidelines
Legacy .strings files for localization 7.2 7.8 7.12 Removed in Looker 7.12 Transition Guidelines
IDE Folders Toggle 7.0 7.10 7.12 Removed in Looker 7.12 Migrating to IDE Folders
Snowflake Unquoted Database Name 7.8 7.12 7.16 Removed in Looker 7.16 Snowflake connection documentation
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