Add maintenance 5.3

[sharadregoti]

PR Type

Documentation

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Description

• Update LTS table entry naming

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Diagram Walkthrough

flowchart LR
  doc["LTS timeline doc"] -- "rename entry" --> table["5.3 row updated"]

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File Walkthrough

	Relevant files
Documentation	long-term-support.mdx Rename 5.3 LTS row to Maintenance LTS                                        developer-support/release-types/long-term-support.mdx Renamed table entry from 5.3 LTS to 5.3 Maintenance LTS Maintains dates and other columns unchanged +1/-1

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⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

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⚡ Recommended focus areas for review Consistency Ensure the naming "5.3 Maintenance LTS" is consistently used across the doc set and matches the defined terminology elsewhere (e.g., previously "5.3 LTS"). Cross-check headings, links, and anchors that might reference the old label. | 5.3 Maintenance LTS | May 2024 - May 2025 | June 2025 - May 2026 | June 2026 | Accuracy Validate the date ranges align with the official release calendar, particularly that the Full and Maintenance windows and "Completely Unsupported From" align with policy for 5.3 under the new naming. | 5.3 Maintenance LTS | May 2024 - May 2025 | June 2025 - May 2026 | June 2026 |

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