modifications

Winsage
June 20, 2026
RedStar OS 3.0 is a national Linux distribution from North Korea, designed primarily for the DPRK's intranet, Kwangmyong. The modified version, RedStar OS 3.5, claims to enhance the original by removing spyware and providing easier access to root privileges. The author faced challenges in accessing the system, implementing a 64-bit kernel, and connecting to the broader internet due to the OS's limitations. Attempts to run the game Tux Racer were unsuccessful due to compatibility issues, resulting in a system with only basic applications available. The overall experience highlighted the shortcomings of RedStar OS 3.5 in terms of practical usability, especially for gaming.
Tech Optimizer
June 20, 2026
The dashboard operates on a Django monolith with PostgreSQL and is transitioning to ClickHouse for denormalization. The initial p50 metric was 0.7 seconds, but the p95 was 8 seconds, which was reduced to 1 second. Observability tools were established to monitor performance, and slow HTTP requests were identified using OpenTelemetry traces. Optimization techniques included late joining, asynchronous counting, creating a PostgreSQL replica for read operations, and improving full-text search. Denormalization was explored to enhance filtering performance by creating composite indexes. The production stack was upgraded to PostgreSQL 18, which provided incremental performance improvements. The final p95 value achieved was 1 second, below the target of 3 seconds.
Tech Optimizer
June 19, 2026
Postgres has introduced new functionalities, including UPDATE and DELETE FOR PORTION OF, enhancing temporal use cases. The expansion of RANDOM() temporal functions is attributed to Paul Ramsey and Greg Sabino Mullane. Version 19 includes performance improvements in the planner and executor components, with contributions from Tom Lane. Key enhancements include refinements in anti-joins and semi-joins, constant folding optimizations, incremental sorting with append paths, enhanced aggregate processing prior to joins, improved join selectivity computation, and more comprehensive function statistics. These changes allow Postgres to better understand query structures, reducing unnecessary processing. The visibility of memoization in EXPLAIN has improved, sort performance has benefited from radix sort, and foreign key constraint checks have become faster. The COPY FROM command can now utilize SIMD instructions. Postgres 19 offers a range of improvements for application developers, operators, performance enthusiasts, and those building on Postgres, including enhanced graph queries, refined SQL syntax, improved window functions, better upsert behavior, REPACK CONCURRENTLY, advancements in autovacuum, improved monitoring capabilities, and new hooks. The release is still in beta, providing an opportunity for testing applications, migration, extensions, execution plans, and maintenance workflows.
Winsage
June 19, 2026
Microsoft has introduced the Microsoft Execution Containers (MXC) SDK to establish Windows as a reliable operating system for autonomous agents, focusing on containment, identity, and manageability. The MXC framework serves as a policy-driven execution layer for agents on Windows and Windows Subsystem for Linux (WSL), allowing developers to set access permissions using JSON or TypeScript. It employs process and session isolation for agent containment and identity. Future enhancements will include micro-VM support for high-risk tasks and integration with Windows 365 for cloud PC workloads. IT teams can manage MXC policies through Entra ID and Intune, while Defender and Purview provide protection and observability. The MXC framework is built on Microsoft's security initiatives, including Secure Boot and passwordless sign-in, allowing agents to inherit a secure foundation. However, early commentary expresses caution regarding MXC's perception as a comprehensive security solution, noting issues with overly permissive policies and the lack of outbound network filtering. Other platforms, such as Linux, are also enhancing security for agents with kernel-level isolation and secure environments like NVIDIA's OpenShell runtime. Various projects are focusing on agent sandboxes within Kubernetes, employing technologies like gVisor and Kata Containers for isolation. Overall, no singular dominant platform security model for AI agents has emerged, with Windows' MXC still considered nascent compared to existing solutions in Linux and Kubernetes ecosystems.
AppWizard
June 18, 2026
Adobe Acrobat Reader has been added to Android Auto with the v26.5.0.45958 update. Subscribers have full access to the app's functionalities, while non-subscribers can use some free features and a 7-day free trial for paid functionalities. Free features include access to scanned PDFs in Liquid Mode, PDF annotation tools, and a PDF signer feature. Visual functions are disabled for safety, but a "Read Aloud" text-to-speech engine is available for free users. Paid subscribers can access high-quality audio options, an AI assistant for file management, and additional editing tools, although advanced features are not yet available on the dashboard.
Winsage
June 16, 2026
Windows 11 update KB5094126 (Build 26200.8655), released on June 9, 2026, has caused boot failures, blue screens, and BitLocker recovery prompts for users, particularly affecting business devices from HP and Dell, including models like HP EliteBook 840 G10 and Dell Precision 7530. The issues stem from changes in Secure Boot and EFI partition modifications, with insufficient EFI partition space leading to errors. A workaround involves disabling Secure Boot in BIOS. Additionally, users have reported disruptions with OneDrive and Microsoft Word integration, particularly in enterprise environments. Microsoft has not yet acknowledged these problems.
Winsage
June 13, 2026
Following the June 2026 update, custom folder icons and localized folder names in Windows are no longer displaying as they typically would due to intentional modifications related to security updates, specifically KB5094126 for Windows 11 versions 24H2 and 25H2. This update tightens the handling of the desktop.ini file, which is used for folder customization. Although access to the actual files remains unchanged, affected folders may revert to default icons or display original directory names instead of customized labels. Microsoft has identified certain sources as untrusted, including files downloaded from the internet and specific remote sources, which affects how desktop.ini files are processed. Users are encouraged to verify file origins, and administrators should ensure that internal sources are classified as trusted to avoid disruptions in folder presentation. The update also includes other security fixes and enhancements.
Winsage
June 12, 2026
Files, a third-party file manager for Windows 11, has been updated to version 4.1.3, introducing several enhancements: - A "View size" button for each folder allows users to calculate folder sizes easily without changing settings. - File selection is retained when switching between different layouts. - Tag management has been streamlined, allowing users to remove tags via the context menu, toolbar, or Command Palette. - The OneDrive icon has been updated to reflect the current version from the OneDrive executable. - Bug fixes include resolving issues with tar archive extraction, crashes on the Signatures page, ensuring the Play action for single media files, correcting Smart Extract functions, addressing tag search issues, refreshing thumbnails, and displaying previously hidden BitLocker-locked drives. - A new Tree View sidebar feature is planned for future updates, enabling navigation of folders in an expandable hierarchy. Files can be downloaded from the Microsoft Store (paid version) or accessed through its official website (free version).
Winsage
June 11, 2026
The Files app has introduced a feature in version 4.1.3 that allows users to calculate folder sizes on demand, which was not available in Windows 11's File Explorer. Users can toggle this option in Settings, and when disabled, a View size button appears in the Size column for easy access. The app now retains selection across different layouts, ensuring previously selected items remain highlighted. It also offers multiple methods for clearing tags from files, including options from the context menu, toolbar, and Command Palette. Additionally, the update features a refreshed OneDrive icon that reflects current branding, and several fixes have been implemented, including resolving issues with extracting tar archives and correcting display problems for BitLocker locked drives.
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