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PostgreSQL 18 on Amazon Aurora and Amazon RDS: Performance enhancements
Tech Optimizer
June 20, 2026

PostgreSQL 18 on Amazon Aurora and Amazon RDS: Performance enhancements

PostgreSQL 18 addresses common performance challenges for users, including managing query performance across composite indexes, diagnosing memory spills in materialized Common Table Expressions (CTEs), and upgrading major versions without plan regressions. Key enhancements include skip scan optimization for multicolumn indexes, improved EXPLAIN functionality, and optimizer statistics that persist through major version upgrades. Skip scan optimization allows PostgreSQL to efficiently utilize multicolumn B-tree indexes even when leading columns are not specified in the WHERE clause, significantly improving query performance. The EXPLAIN command has been enhanced to include buffer statistics by default, providing deeper insights into query execution and resource usage. PostgreSQL 18 also introduces visibility into the storage of materialized nodes in query plans, indicating whether intermediate results were stored in memory or spilled to disk. A new metric, Index Searches, has been added to EXPLAIN ANALYZE output, indicating how many times the database traversed the index tree during query execution. Additionally, Self-Join Elimination (SJE) automatically detects and removes unnecessary inner joins of a table to itself, optimizing query performance. The autovacuum mechanism has been improved with the introduction of autovacuum_vacuum_max_threshold, which caps the number of dead tuples that can accumulate before autovacuum triggers a VACUUM, addressing issues with large tables. The vacuum_truncate parameter provides a server-wide control point to disable VACUUM’s file truncation behavior, reducing locking issues on busy systems. PostgreSQL 18 also separates the allocation of autovacuum worker slots from their usage, allowing for dynamic adjustments to autovacuum_max_workers without requiring a server restart. Finally, new columns in pg_stat_all_tables track cumulative time spent on maintenance operations, providing better insights into maintenance overhead for each table.
Что такое торрент, как он работает и можно ли им пользоваться
TrendTechie
June 20, 2026

Что такое торрент, как он работает и можно ли им пользоваться

Downloading a Linux distribution from the official website typically takes about half an hour, but during high-demand periods, such as new Ubuntu releases, speeds can drastically decrease due to server overload. Torrents, which use a peer-to-peer file-sharing protocol, allow users to download and share data simultaneously, reducing the load on a single server. Torrents operate by enabling direct exchanges between users through the BitTorrent protocol, where files are divided into smaller pieces and downloaded in parallel from multiple sources. Key terms include peers (users with parts of the file), seeds (users who have fully downloaded the file), .torrent files (metadata files), and magnet links (text-based alternatives to .torrent files). The BitTorrent protocol does not rely on a central server, enhancing resilience as files can continue to circulate as long as at least one seed is available. To use torrents, a torrent client is needed, with recommended options for 2026 including qBittorrent, Transmission, and BiglyBT. The BitTorrent technology itself is legal, but legality depends on the content being shared. Legal uses include downloading Linux distributions, open-source software, and scientific datasets, while unlicensed movies and cracked software are illegal. In Russia, while torrent technology is not prohibited, downloading copyrighted content without permission is a violation. Risks of using torrents include exposure to viruses and malware, copyright infringement, fake distributions, and IP address exposure. To protect oneself, users should choose moderated trackers, avoid suspicious files, use antivirus software, and limit upload speeds. Common problems include slow speeds, connection issues, and disappearing files, which can often be resolved by checking settings or ensuring there are seeds available. Sharing files after downloading is not legally mandatory but is considered good etiquette in the torrent community.
Выпуск qBittorrent 5.2.2
TrendTechie
June 20, 2026

Выпуск qBittorrent 5.2.2

On May 15, 2026, qBittorrent version 5.2.2 was released. It is an open-source torrent client developed using the Qt toolkit, with source code available on GitHub under the GPLv2+ license. The software supports Linux, Windows, and macOS. The project started with version 4.0 in November 2017, followed by versions 5.0 in September 2024 and 5.1 in April 2025. The 5.2.2 update focuses on bug fixes and stability improvements, including D-Bus utilization for file display, header mismatch correction in Safari, magnet link sending issue fix, correct string identifier implementation for RSS Downloader, 64-bit binary installation on ARM64 systems, prevention of SSRF attacks, and mitigation of proxy interference in multi-threaded processing. Key features include an integrated search engine, RSS feed subscription, support for BEP extensions, remote management, sequential downloading, advanced torrent settings, bandwidth scheduling, IP filtering, torrent creation interface, and UPnP/NAT-PMP support.
4 security upgrades in Android 17 you didn't know about, but will be glad to have
AppWizard
June 19, 2026

4 security upgrades in Android 17 you didn’t know about, but will be glad to have

Google's Android 17 update is being deployed to Pixel devices, introducing new features such as multitasking bubbles, expanded dark theme controls, and a revamped screen recording interface. Key user preferences from a poll indicate that 32% favor multitasking app bubbles, while other features received varying levels of support. The update includes App Memory Limits to prevent excessive RAM usage by apps, enhancing performance. It also restricts apps from scanning local networks without explicit permission, improving user privacy. Additionally, Android 17 tightens restrictions on dynamic code loading to strengthen malware protection and implements Certificate Transparency protections by default for secure HTTPS connections. Overall, these changes aim to enhance performance, security, and user experience.
I discovered a dead‑simple way to remember Windows 11 shortcuts, and it changed how I use the OS
Winsage
June 18, 2026

I discovered a dead‑simple way to remember Windows 11 shortcuts, and it changed how I use the OS

The Microsoft team behind PowerToys has released an updated Shortcut Guide in version 0.100 for Windows 11, which now appears as a context-sensitive flyout instead of a static reference page. This guide provides relevant keyboard shortcuts based on the application currently in use, improving user efficiency and learning. Users can access the Shortcut Guide by installing PowerToys and can customize its settings, including color theme and activation shortcut. The guide displays shortcuts for various applications and includes a list of Windows 11 and PowerToys shortcuts when no applications are focused. Developers can integrate their apps into the Shortcut Guide as well.
Skip paying full price and save $80 on Windows 11 Home
Winsage
June 18, 2026

Skip paying full price and save $80 on Windows 11 Home

A Windows 11 Home license is currently available for .99, a significant reduction from the standard retail price of 9.99. The license is permanent and non-transferable, valid for the lifetime of the installation on one specific machine. It is provided as a digital key, requiring the download and installation of Windows prior to activation.
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