Document history - Amazon CloudWatch Logs

Document history

The following table describes important changes in each release of the CloudWatch Logs User Guide, beginning in June 2018. For notification about updates to this documentation, you can subscribe to an RSS feed.

ChangeDescriptionDate

CloudWatchLogsReadOnlyAccess policy updated

CloudWatch Logs added the cloudwatch:GenerateQuery permission to CloudWatchLogsReadOnlyAccess, so that users with this policy can generate a CloudWatch Logs Insights query string from a natural language prompt.

November 26, 2023

CloudWatchLogsFullAccess policy updated

CloudWatch Logs added the cloudwatch:GenerateQuery permission to CloudWatchLogsFullAccess, so that users with this policy can generate a CloudWatch Logs Insights query string from a natural language prompt.

November 26, 2023

CloudWatch Logs adds log pattern analysis

CloudWatch Logs now scans for patterns in log events every time you perform a CloudWatch Logs Insights query. For more information, see Pattern analysis.

November 26, 2023

CloudWatch Logs adds log anomaly detection

You can create a log anomaly detector for a log group. The anomaly detector scans the log events ingested into the log group and finds anomalies in the log data. For more information, see Log anomaly detection.

November 26, 2023

CloudWatch Logs adds compare feature

You can now use CloudWatch Logs Insights to compare changes in your log events over time. . For more information, see Compare (diff) with previous time ranges.

November 26, 2023

CloudWatch Logs adds a new log class

CloudWatch Logs supports two classes of log groups so that you can have a cost-effective option for logs that you access infrequently, and you also have a full-featured option for logs that require real-time monitoring or other features. For more information, see Log classes.

November 26, 2023

CloudWatch Logs Insights supports natural language query generation

CloudWatch Logs Insights supports natural language to generate and update queries. For more information, see Use natural language to generate and update CloudWatch Logs Insights queries.

November 26, 2023

CloudWatch Logs adds regular expression filter pattern syntax support for Live Tail

You can now further customize your search and match operations to meet your needs with flexible regular expressions within Live Tail filter patterns. For more information, see Filter pattern syntax in the Amazon CloudWatch Logs User Guide.

November 13, 2023

CloudWatch Logs adds regular expression filter pattern syntax support for metric filters, subscription filters, and filter log events

You can now further customize your search and match operations to meet your needs with flexible regular expressions within filter patterns. For more information, see Filter pattern syntax in the Amazon CloudWatch Logs User Guide.

September 5, 2023

CloudWatch Logs Insights adds a pattern command

You can now use pattern in your CloudWatch Logs Insights queries to automatically cluster your log data into patterns. A pattern is shared text structure that recurs among your log fields. For more information, see pattern in the Amazon CloudWatch Logs User Guide.

July 17, 2023

CloudWatch Logs Insights adds a dedup command

You can now use dedup in your CloudWatch Logs Insights queries to remove duplicate results based on specific values in fields that you specify. For more information, see dedup in the Amazon CloudWatch Logs User Guide.

June 20, 2023

Account-level data protection policies

You can now set data protection policies at the account level. These account-level policies can audit and mask sensitive information in log events in all log groups in the account. For more information, see Help protect sensitive log data with masking in the Amazon CloudWatch Logs User Guide.

June 8, 2023

Live Tail feature added

CloudWatch Logs added Live Tail ability, so you can scan logs as they are ingested to help with troubleshooting. You can optionally filter the displayed stream of log events based on specified terms, and also highlight log events that have specified terms. For more information, see Use live tail to view logs in near real time.

June 6, 2023

CloudWatchLogsReadOnlyAccess policy updated

CloudWatch Logs added permissions to CloudWatchLogsReadOnlyAccess. The logs:StartLiveTail and logs:StopLiveTail permissions were added so that users with this policy can use the console to start and stop CloudWatch Logs live tail sessions. For more information, see Use live tail to view logs in near real time.

June 6, 2023

CloudWatch Logs Insights released

You can use CloudWatch Logs Insights to interactively search and analyze your log data. For more information see Analyze Log Data with CloudWatch Logs Insights in the Amazon CloudWatch Logs User Guide

November 27, 2018

Support for Amazon VPC endpoints

You can now establish a private connection between your VPC and CloudWatch Logs. For more information, see Using CloudWatch Logs with Interface VPC Endpoints in the Amazon CloudWatch Logs User Guide.

June 28, 2018

The following table describes the important changes to the Amazon CloudWatch Logs User's Guide.

Change Description Release date

Interface VPC endpoints

In some Regions, you can use an interface VPC endpoint to keep traffic between your Amazon VPC and CloudWatch Logs from leaving the Amazon network. For more information see Using CloudWatch Logs with interface VPC endpoints.

March 7, 2018

Route 53 DNS query logs

You can use CloudWatch Logs to store logs about the DNS queries received by Route 53. For more information see What is Amazon CloudWatch Logs? or Logging DNS Queries in the Amazon Route 53 Developer Guide.

September 7, 2017

Tag log groups

You can use tags to categorize your log groups. For more information, see Tag log groups in Amazon CloudWatch Logs.

December 13, 2016

Console improvements

You can navigate from metrics graphs to the associated log groups. For more information, see Pivot from metrics to logs.

November 7, 2016

Console usability improvements

Improved the experience to make it easier to search, filter, and troubleshoot. For example, you can now filter your log data to a date and time range. For more information, see View log data sent to CloudWatch Logs.

August 29, 2016

Added AWS CloudTrail support for Amazon CloudWatch Logs and new CloudWatch Logs metrics

Added AWS CloudTrail support for CloudWatch Logs. For more information, see Logging Amazon CloudWatch Logs API calls in AWS CloudTrail.

March 10, 2016

Added support for CloudWatch Logs export to Amazon S3

Added support for exporting CloudWatch Logs data to Amazon S3. For more information, see Exporting log data to Amazon S3.

December 7, 2015

Added support for AWS CloudTrail logged events in Amazon CloudWatch Logs

You can create alarms in CloudWatch and receive notifications of particular API activity as captured by CloudTrail and use the notification to perform troubleshooting.

November 10, 2014

Added support for Amazon CloudWatch Logs

You can use Amazon CloudWatch Logs to monitor, store, and access your system, application, and custom log files from Amazon Elastic Compute Cloud (Amazon EC2) instances or other sources. You can then retrieve the associated log data from CloudWatch Logs using the Amazon CloudWatch console, the CloudWatch Logs commands in the AWS CLI, or the CloudWatch Logs SDK. For more information, see What is Amazon CloudWatch Logs?.

July 10, 2014