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Hello Delphi Enthusiasts! An absolutely unique event is approaching, one that no Delphi enthusiast can afford to miss! On June 5-6, 2025, the Delphi Summit will take place in vibrant Amsterdam, celebrating an incredible 30 years of Delphi's existence! This isn't just another conference – it's a global gathering of the Delphi community, a unique opportunity to: Discover the latest trends and technologies: Explore the future of Delphi, see innovative solutions, and learn how to leverage the full potential of this environment in your projects. Learn from the best: Listen to presentations by world-class experts, Delphi creators, and industry leaders who will share their knowledge and experience. Participate in hands-on sessions: Dive into code during workshops and technical sessions, gaining practical skills that you can immediately implement in your work. Make invaluable connections: Meet other developers, exchange ideas, build business relationships, and become part of the global Delphi family. Experience a unique atmosphere: Celebrate 30 years of Delphi in an international group, drawing inspiration and energy from the passion of other participants! (More details about the agenda and speakers can be found on the official website: https://delphisummit.com/) Join our group trip and take advantage of a DISCOUNT! To make this trip even more exciting and hassle-free, we are organizing a joint group trip to the Delphi Summit (in cooperation with BSC Polska)! Why travel with us? Super Discount: We have a special discount code that lowers the price of the Summit ticket 🙂 only for our group. Fantastic company: Travel and stay with a group of Delphi enthusiasts – guaranteed inspiring conversations, exchange of experiences, and lots of fun! Convenient transportation: We are traveling in a comfortable, air-conditioned van directly from Zielona Góra (Poland). Possibility to join along the way (Świebodzin, Berlin, Hanover, ...) Organized accommodation: We provide comfortable accommodation in a picturesque area, not far from the conference venue. Full integration: The journey itself is a great opportunity to meet interesting people with the same interests and network in a relaxed atmosphere. Cost optimization: We share the costs of transportation and accommodation, making the trip more affordable. Preliminary plan and estimated costs: Departure: Wednesday, June 4, 2025, at 8:00 AM from Zielona Góra. Possibility to join along the way (Świebodzin, Berlin, Hanover, ...). Transportation: Comfortable van (Ford Transit Custom 2021, 8 seats, air conditioning, plenty of space). Accommodation: 3 nights (04.06 - 07.06.2025) in Marinapark Volendam (charming location approx. 9 km from the Summit). Double rooms. Link to the property: https://www.booking.com/Share-ondy5X Return: Saturday, June 7, 2025, after breakfast. We plan a quick tour of Amsterdam before heading back! Additionally: Stops for meals during the trip Parking: Possibility to leave (free of charge) your car for the duration of the trip in a monitored, closed parking lot in Zielona Góra. Interested? Don't hesitate! We have a limited number of seats in the van and accommodation reservations. If you want to experience this amazing adventure, meet fantastic people, take advantage of the discount, and be part of the historic, jubilee Delphi Summit, contact me as soon as possible to reserve your spot and get the discount code! Best Regards Marcin You can contact also by www.linkedin.com/in/marcinmoszkowicz

hydrobyte/TestJSON: A simple project to test JSON libraries with Delphi and C++Builder. presents JSON library benchmarks comparing a large number of alternatives. One thing that strikes me, is that the System.JSON rtl library is doing relatively well compared to the competition, both in terms of performance and in terms of JSON validation. With the exception of Find, is very competitive in all other areas. I have seen many claims that System.JSON is very slow and that the xyz library is so many times faster. Do these benchmarks suck (like most benchmarks)? Or is it the case that System.JSON is not that bad? What is your experience?

FWIW, such benchmarks should also run in parallel because especially string-related parsing is usually full of heap allocations that can suffer highly in multithreading. I am also sure that @Arnaud Bouchez could join the game and stomp all these libraries into the ground performancewise with mormot

This morning, I started the 14-day trial of Superluminal, and my first impression is very positive. I have yet to run it against more than some tiny toy projects though

I think that original need to introducing [ref] was the need to force passing value parameters as references so they would match some cross platform API. I don't remember whether that was merely a difference between 32-bit and 64-bit Windows platforms, or there were other OS involved. I also don't remember whether C++ Builder support also had something to do with it. AFAIK, Allen Bauer explained this somewhere. I am not sure if this was only on his blog or it was also mentioned on old forums. New FreeAndNil implementation came years later and it merely used the feature that was introduced for other reasons.

FYI: https://probablydance.com/2018/06/16/fibonacci-hashing-the-optimization-that-the-world-forgot-or-a-better-alternative-to-integer-modulo/ -tee-

Hello, I am not able to start 1 Android app of 3 apps since migration to Delphi 11. I did the "Revert system files to default" on Libraries. It fails in FMX.Platform.Android, TPlatformAndroid.Create, on the line Activity.addListener(FActivityListener): Please any ideas what can be wrong / how to repair it?

Fixed it: If you encounter this issue open the project's .dproj file with notepad and search for the <EnabledSysJars> tag. Remove the content between the <EnabledSysJars></EnabledSysJars> tag. and save the file. Building should work now.