Bug Fixes

• Fix port usage when nats rtt is given an IP address
• Use consumer stats instead of stream state for delivered rate
• Improve date consistency of various timestamps using the standard renderer

Enhancements

• Add --endpoint/-e to nats service info
• Add some connection logs and slow down reconnects
• Report GOMEMLIMIT if set
• Add server req ipq and raftz
• Support wildcard for KV list
• Add --api-level flag to stream find and consumer find commands
• Report API Level in streams and consumers report
• Change the password length limit to 10 characters
• Report local addresses when different from client address
• Add --direct flag to sub command
• Add --filter flag to bench js consume and fetch commands
• Drop placeholders to display default value for flags where it is set
• Implement --templates flag to disable template processing on publish

NATS Server 2.12 Preview Features

These are preview features that require the currently unreleased NATS Server 2.12

• Initial support for ADR-50 Atomic Batch Publishing
• Allows configuring ADR-49 Counters

New Contributors

• @chenjpu made their first contribution in #1398
• @mikluko made their first contribution in #1405

Full Changelog: v0.2.3...v0.2.4

Bug Fixes

• Fix account report connections
• Handle errors from reports with --watch correctly
• Improve handling timeout for the jetstream package
• Fix kv edit to not override unspecified fields

Enhancements

• Improve relevant help and logs about stream view page limit
• Add tests for consumer actions
• Remove redundant condition in consumer command
• Support sending on newline for nats pub
• Cross platform testing & fix runNatsCli timeout
• Support KV TTLs
• Add stream tests
• Add Windows to GH Action Tests
• Add object edit command
• Add tests for server command and all related subcommands

New Contributors

• @Imanghvs made their first contribution in #1348
• @thewizzy made their first contribution in #1356

Full Changelog: v0.2.2...v0.2.3

Bug Fixes

• Improve embedability of check features
• Fix stdin detection for nats reply
• Fix operator signing-key description

New Contributors

• @heikkilamarko made their first contribution in #1338

Full Changelog: v0.2.1...v0.2.2

Bug Fixes

• Consistency updates for account name argument
• Verify the connection prior to prompting for Consumer information
• Handle limit and offset in req jsz
• Fix handling of user set empty bodies in pub/req

Enhancements

• Add --watch flag to server report commands
• Add token authentication support to context options
• Update the readme's nats bench examples to use the new nats bench commands

New Contributors

• @tommylp made their first contribution in #1324

Full Changelog: v0.2.0...v0.2.1

Major New Features

Decentralized Authentication Management

We have introduced some of the functionality from nsc and nk into the new nats auth command. The aim is not to support every feature nsc has but to identify the key features most users use and bring those into the nats command.

This is an initial release and we're seeking feedback around missing features users feel are key and around the general interaction model.

Please see AUTH.md for a testing guide.

Configuration Scaffolding

To complement nats auth and to help new users we introduced a new configuration generation feature set in nats server generate. This tool will guide users through interactive questions to solve goal orientated outcomes such as generating local Docker Compose development Super Clusters or connecting to Synadia Cloud using a Leafnode.

The tool supports sharing bundles without performing new releases of the nats command and again we'd love feature requests on scaffolding you'd like to see here.

Major nats bench rewrite

The nats bench command has seen a major rewrite splitting it into seperate commands with options grouped around specific goals rather than all in one huge set of flags.

Real time graphs

We've added numerous graph features to the tooling that allow you to see traffic rates on specific subjects, in and out of streams and consumers and more.

See:

• nats sub --graph
• nats stream graph
• nats consumer graph
• nats server graph

nats top

We've incorporated the nats-top command as a new sub command and made it work over NATS network rather than HTTP for consistency with all the other nats administration commands.

Enhancements

General

• Support switching to the previous context using nats ctx previous
• Temporary files that might be edited now use the correct extension to assist editors with syntax highlighting
• Supports TLS First in Contexts and general connection options via --tlsfirst
• A context may now be unsellected using nats context unselect
• Support loading TLS files from the Windows Certificate Store
• Adds a new nats server watch command that can passively observe a NATS Cluster
• Support compressing KV buckets
• Support compressing Object Store buckets
• Supports building for the s390x Architecture
• Supports subscribing to multiple subjects in nats sub
• Support options like --js-domain in nats sub
• Support encrypting and decrypting data using xkeys via nats auth nk seal and nats auth nk unseal
• Support interactive, guided, Server configuration generation using nats server generate
• Various utility flags for nats sub: --subjects-only, --timestamp and --delta-time
• Name MQTT connections by MQTTClient ID instead of Name
• Major rewrite of the nats bench command for better UX
• Adds new nats sub --graph options to interactively draw subject traffic rates
• Various commands that parse the EDITOR environment variable now supports arguments in the supplied command
• Improved color aware progress bars
• Subjects now support template parsing in nats pub and nats req
• The --translate flag on nats sub now supports the --dump flag

Operations

• Adds nats server check credential that can monitor credential expiry and more
• Support filtering connections using an expression language on nats server report connections --filter
• Support filtering connections by username using nats server report connections --username
• Support filtering connections by state using nats server report connections --state
• Support filtering closed connections by reason using nats server report connections --state closed --closed-reason
• New bar graph based views for CPU and Memory in nats server report cpu and nats server report mem
• Adds a new nats server check consumer to validate various aspects of Consumers as a health check
• Allow Replicas to be changed when performing Stream restores
• Adds a new nats auth command that can manage nkeys and has a subset of nsc features
• Adds a new nats top command incorporating features previously found in nats-top
• Adds an initial cluster connections balancer in nats server cluster balance
• Support tracing message flow through complex cluster toplogies using nats trace (Requires NATS Server 2.11)
• The chunks size used by nats stream backup can now be adjusted to assist connections over slow transports or VPNs
• New Stream and Consumer metadata based thresholds monitoring features
• Support requesting cpu profiles
• Additional details shown about Slow Consumers in nats server list
• Renders JetStream API Pending counts in various reports
• Adds a new nats server graph command that can graph various aspects of running NATS Servers
• nats server check consumer supports Pinned Consumers
• Adds a new Cluster report in nats server report cluster
• Adds a new Super-Cluster report in nats server report gateways
• Adds a new Health report in nats server report health
• Adds a new Leafnode report in nats server report leafs
• Support placing Stream and Consumer leaders on a specific host in nats stream cluster down and nats consumer cluster down (Requires NATS Server 2.11)
• Supports rendering a hash (digest) of the running configuration in nats server info (Requires NATS Server 2.11)
• The nats event command can now read a Stream full of events with the new --stream and --since flags
• Adds a new nats server check request that can health check services
• Adds an option to influence expected server counts in all nats server report commands

JetStream

• Support interactive editing of Consumer configuration using the -i flag
• nats pub is now JetStream aware with the new --jetstream flag
• Support setting Consumer limits on Streams
• Support parsing subject filters as a comma seperated list in nats consumer add
• Raft group details are now shown in Stream and Consumer info
• Report on tiered storage reservations in nats account info
• Support --nak in nats consumer next
• Renders Consumer Limits in nats stream info
• Support nats stream view for WorkQueue streams with Direct Get enabled
• Support editing Inactive Threshold in nats consumer edit
• Support unprompted cluster step-downs using --force
• New nats stream graph and nats consumer graph commands to view real time traffic statistics for Streamd and Consumers
• Adds a new nats consumer find command used for searching using various filters and limiters for Consumers
• Improve nats consumer list to behave more like nats stream list
• Report JetStream limits in nats server info (Requires NATS Server 2.11)
• Support Pausing and Resuming consumers (Requires NATS Server 2.11)
• Support the concept of JetStream API levels based on ADR-44 and use that to ensure safer operations for those requiring NATS Server 2.11 and newer
• Support Pinned Consumers as per ADR-42 (Requires NATS Server 2.11)
• Support balancing leaderships for Streams and Consumers using nats stream balance and nats consumer balance (Requires NATS Server 2.11)
• Supports configuring Per Message TTL features for Streams (Requires NATS Server 2.11)
• KV Buckets can now be edited using nats kv edit
• Additional options were added to nats kv watch

Bug Fixes

• Numerous UX and rendering improvements
• When reporting on super clusters warn about route asymmetry per cluster rather than per super cluster
• Correctly calculate server RTTs in nats rtt command and support --trace
• Use the correct name spaces for Prometheus monitoring output
• Correctly handle single subject filter consumers
• Memory usage improvements for nats server report connections
• Do not prompt for Backoff on AckNone policy
• Fix listing Object Store names using --names
• Fix incorrect JetStream store dir when using $XDG_DATA_HOME in nats server run
• Fix handling of --top in nats server report accounts
• Do not handle Flow Control headers when not communicating with JetStream
• Do not alert about no meta leader in standalone servers
• Improved sorting for nats sub --report-subjects
• Improve paging of Connz requests in various reports
• Various progress bar related bug fixes
• Be less interactive when using --defaults in nats stream add
• Consumer max_waiting should not be editable
• Fix overriding JetStream Domain when Contexts are used
• The nats kv and nats obj commands now support Domains and API Prefixes

New Contributors

• @piotrpio made their first contribution in #866
• @LautaroJayat made their first contribution in #951
• @erhhung made their first contribution in #963
• @johnweldon made their first contribution in #974
• @samuelattwood made their first contribution in #986
• @MauriceVanVeen made their first contribution in #1000
• @zakk616 made their first contribution in #1025
• @jordan-rash made their first contribution in #1031
• @yeqown made their first contribution in #1039
• @mprimi made their first contribution in #1028
• @Zambito1 made their first contribution in https://github.com/nats-io...

CVEs

• Vulnerability check warnings for CVE-2024-45337 are addressed by the dependency update to x/crypto, although the nats does not use the affected functionality and is therefore not vulnerable

Full Changelog: v0.1.5...v0.1.6

Bug Fixes

• Various UX and rendering improvements
• Improve handling of cluster size counts in nats server req commands
• Improve stdin handling for kv and object commands
• Report correct timezone in nats stream commands
• Make the consumer inactive threshold editable
• Prevent empty subject transform configurations
• Improve handling of KV value sizes
• Documentation fixes

Enhancements

• New nats server check consumer command to verify consumer health
• Show Consumer limits in nats stream info
• Support filtering closed connections by reason in nats server report connections

Bug Fixes

• Improve handling invalid nats context configurations
• Handle Subject Transforms correctly in nats stream edit
• Avoid some nil pointer exceptions when selecting consumers

Full Changelog: v0.1.3...v0.1.4

Enhancements

• Support --limit-consumer-inactive and --limit-consumer-max-pending for Streams
• New command nats server check credentials that can monitor a NATS Credentials file
• Adds new --filter option to nats server report connections allowing filtering like this example nats server report connz --filter 'lower(conns.name) matches "surveyor" || conns.ip == "46.101.44.80"' this uses Expr language syntax to perform arbitrary filters
• Support limiting connection reports by username using the new --username
• Support comma separate list of filter subjects in nats consumer add
• Support connecting to NATS Servers configured for TLS First using --tlsfirst, also supported by contexts
• Builds for the s390x architecture
• Support KV compression

Maintenance

• Remove some dependencies

Bug Fixes

• Warn about route asymmetry per cluster rather than per Super Cluster
• Minor UX improvements
• Correctly handle custom Prometheus namespaces in the nats server check commands
• Major memory use improvement for connections reports
• When editing a single filtered consumer the edit command would incorrectly change it to a multi filter consumer with just 1 match
• Do not prompt for Backoff information when Ack None was chosen for a Consumer
• Fix the --names flag when listing Object Bucket contents

Full Changelog: v0.1.1...v0.1.3

Bug Fixes

This fixes the ability to install the command using go install only, otherwise it is identical to Release v0.1.0