Changelog

2025.06.26

Version: 0.0.19

Changes:

Telescope has migrated to clickhouse-connect and now communicates with ClickHouse server exclusively over the HTTP(S) interface.
Support for the native protocol (clickhouse-driver) has been removed.
JSON ClickHouse data type is now supported
FlyQL now supports whitespace around operators. Expressions like key = value are valid now (previously only key=value was allowed).
FlyQL now supports typed keys, such as jsonfield:user-agent = 'firefox'.
FlyQL now supports quoted JSON paths to handle special characters like colons. Example: jsonfield:'my:key:with:colon':path = 123.

Notes:

Motivation for dropping native protocol support

clickhouse-connect is the officially supported driver by ClickHouse Inc., ensuring long-term support and faster access to new ClickHouse features.
In Telescope’s workload profile — primarily log browsing and filtering — the performance difference for SELECT queries is negligible, as result sets are typically small (≤10,000 rows).
Simplifies deployment by eliminating native dependencies and improves compatibility with managed environments and cloud infrastructure.

2025.05.18

Version: 0.0.18 Changes:

Implemented saved views
Small bugfixes & improvements

Related issues:

ISSUE-3

Notes:

2025.04.20

Version: 0.0.17 Changes:

Implemented token-based authentication (API tokens) as a foundation for future API access
Bugfixed data section border misalignment in the Explorer. Thanks to meirdev!

Related issues:

ISSUE-24

Notes:

2025.04.08

Version: 0.0.16 Changes:

Added various options for SSL-based ClickHouse connections
Added the ability to disable authentication via the config file

Notes:

2025.04.01

Version: 0.0.15 Changes:

Added Docker as a new source kind
Redesigned source list
Added toggle to show/hide filters on the explorer page
Fixed bug in date range selector when using the graph
Fixed bug where the show/hide graph option wasn’t preserved on reload

Notes:

2025.03.19

Version: 0.0.14

Changes:

The source time field now supports UInt64, Int64, and timestamp ClickHouse types. Thanks to Zerg1996!

Related issues:

ISSUE-13

2025.03.15

Version: 0.0.13

Changes:

Added config option to force github authentication on login page

2025.03.11

Version: 0.0.12 Changes:

Explorer UI update: query settings and chart settings have been moved into separate dropdown menus to improve usability and reduce interface clutter.
Added a placeholder for the raw query editor and made various style adjustments

2025.03.10 +

Version: 0.0.11 Changes:

Added support for raw SQL WHERE statements

Related issues:

ISSUE-5

2025.03.10

Version: 0.0.10 Changes:

Added support for custom fields in the “Group By” option on graphs.
Changed data loading behavior: now, when making a new request, the old data remains on the screen until the new data is fully loaded.
Bugfix for a mismatch between time values in graphs and data tables (caused by differences between UTC and non-UTC timestamps).

Related issues:

ISSUE-4

Notes:

2025.02.27

Version: 0.0.9

Changes:

Make the source severity field optional.

Related issues:

ISSUE-6

2025.02.24

Version: 0.0.8

Changes:

Bugfix for non-UTC time fields in ClickHouse
Bugfix for specifying time with histogram range selection

2025.02.19

Version: 0.0.7

Changes:

Cosmetic login screen update.

2025.02.18

Version: 0.0.6

Changes:

Fixed monaco editor static files.

2025.02.17

Version: 0.0.5

Changes:

Fixed a bug inside fields parser.
Updated modifiers docs.
Added naive support for Map & Array ClickHouse types.
Added new modifiers:
- href, for dynamically creating HTML links.
- format, for pretty formatting of SQL or JSON data.
- highlight, for syntax highlighting of SQL or JSON data.

2025.02.13

Version: 0.0.4

Changes:

Fixed default JSON renderer to handle unserializable objects properly.

2025.02.13

Version: 0.0.3

Changes:

Added placeholders for fields and query inputs based on source fields.

2025.02.12

Version: 0.0.2

Changes:

Initial release