---
id: post/gerardorenteria-blog/10701
type: post
title: AL Language extension for Microsoft Dynamics 365 Business Central version 15.0.1433841 (New version)
summary: The AL Language extension version 15.0 introduces implicit conversion between Record and RecordRef, HTTP mocking for testing, improved JSON data access methods, multiline strings, a continue statement for loops, and numerous other developer features. This update helps developers write more flexible, testable, and maintainable AL code with enhanced language constructs and APIs.
tier: community
language: en
tags:
  - al language
  - version 15.0
  - testing
  - http mocking
  - json api
  - language features
  - developer tools
  - visual studio code
system: development
review:
  state: reviewed
  by: opus
  at: "2026-10-08T02:01:14.122Z"
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    url: https://gerardorenteria.blog/2025/04/14/al-language-extension-for-microsoft-dynamics-365-business-central-version-15-new-version/
    title: AL Language extension for Microsoft Dynamics 365 Business Central version 15.0.1433841 (New version)
    date: "2025-04-14"
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  - kind: blog
    url: https://gerardorenteria.blog/2025/04/14/al-language-extension-for-microsoft-dynamics-365-business-central-version-15-new-version/
    title: AL Language extension for Microsoft Dynamics 365 Business Central version 15.0.1433841 (New version)
    date: "2025-04-14"
    commit: null
    t: null
    quote: Every HTTP request that occurs during the execution of that test will be intercepted and routed to the handler.
  - kind: blog
    url: https://gerardorenteria.blog/2025/04/14/al-language-extension-for-microsoft-dynamics-365-business-central-version-15-new-version/
    title: AL Language extension for Microsoft Dynamics 365 Business Central version 15.0.1433841 (New version)
    date: "2025-04-14"
    commit: null
    t: null
    quote: AL now has support for multiline string literals. A multiline string must be prefixed with @.
  - kind: blog
    url: https://gerardorenteria.blog/2025/04/14/al-language-extension-for-microsoft-dynamics-365-business-central-version-15-new-version/
    title: AL Language extension for Microsoft Dynamics 365 Business Central version 15.0.1433841 (New version)
    date: "2025-04-14"
    commit: null
    t: null
    quote: From runtime version 15, it is possible to use the continue keyword in loops to continue to the next iteration.
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post_id: "10701"
source_id: gerardorenteria-blog
source_name: Gerardo Renteria
url: https://gerardorenteria.blog/2025/04/14/al-language-extension-for-microsoft-dynamics-365-business-central-version-15-new-version/
published_at: "2025-04-14T19:59:47.000Z"
author: Gerardo Renteria
full_text: false
words: 2034
quotes:
  - text: Every HTTP request that occurs during the execution of that test will be intercepted and routed to the handler.
    why_it_matters: Explains the core mechanism of HTTP mocking for controlled testing of external service integrations
  - text: AL now has support for multiline string literals. A multiline string must be prefixed with @.
    why_it_matters: Introduces a new language syntax that simplifies handling of multi-line text content in code
  - text: From runtime version 15, it is possible to use the continue keyword in loops to continue to the next iteration.
    why_it_matters: Adds a standard loop control feature that developers expect from modern programming languages
code_objects_mentioned:
  - codeunit RecordAndRecordRefConversion
  - codeunit MyCodeunit
  - codeunit MyCodeunitTests
systems:
  - development
  - platform
versions_mentioned:
  - "15.0"
  - 15.0.1433841
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---

# AL Language extension for Microsoft Dynamics 365 Business Central version 15.0.1433841 (New version)

[Read the post](https://gerardorenteria.blog/2025/04/14/al-language-extension-for-microsoft-dynamics-365-business-central-version-15-new-version/) · Gerardo Renteria (Gerardo Renteria) · 2025-04-14 · 2034 words · tier community · reviewed (checked by Opus)

> The AL Language extension version 15.0 introduces implicit conversion between Record and RecordRef, HTTP mocking for testing, improved JSON data access methods, multiline strings, a continue statement for loops, and numerous other developer features. This update helps developers write more flexible, testable, and maintainable AL code with enhanced language constructs and APIs.

## Key points

- Implicit conversion between Record and RecordRef types allows direct assignment without explicit method calls
- HttpClientHandler enables mocking HTTP responses in test codeunits with configurable request policies for OnPrem instances
- New JSON access methods (GetBoolean, GetInteger, GetText, etc.) simplify data retrieval without always using JsonToken
- Language enhancements include multiline strings with @ prefix, continue statement for loops, and UserControlHost page type
- Multiple developer experience improvements in VS Code including searchable downloaded symbols, new project templates, and file preview functionality

## Quotes

- "Every HTTP request that occurs during the execution of that test will be intercepted and routed to the handler." (Explains the core mechanism of HTTP mocking for controlled testing of external service integrations)
- "AL now has support for multiline string literals. A multiline string must be prefixed with @." (Introduces a new language syntax that simplifies handling of multi-line text content in code)
- "From runtime version 15, it is possible to use the continue keyword in loops to continue to the next iteration." (Adds a standard loop control feature that developers expect from modern programming languages)

## AL objects mentioned

As named in the post. A name that matches one object page by exact type and name links to it; the others stay as named.

- codeunit "RecordAndRecordRefConversion"
- codeunit "MyCodeunit"
- codeunit "MyCodeunitTests"

Not found in BC28-30: codeunit "RecordAndRecordRefConversion", codeunit "MyCodeunit", codeunit "MyCodeunitTests".

## Context

- Features: Implicit Record and RecordRef conversion, HTTP mocking in tests, JSON direct value access methods, Multiline string literals, Continue statement for loops, UserControlHost page type, File preview from stream, Downloaded symbol search in Copilot Chat
- Versions: 15.0, 15.0.1433841

Source: Gerardo Renteria, community blog. Summary, key points and quotes are derived (CONTENT-NOTICE.md); read the original for the full text.