Rômulo

¯\_(ツ)_/¯

[Alex Xu @alexxubyte]

HTTP 1.0 -> HTTP 1.1 -> HTTP 2.0 -> HTTP 3.0 (QUIC).

What problem does each generation of HTTP solve?

The diagram below illustrates the key features.

🔹HTTP 1.0 was finalized and fully documented in 1996. Every request to the same server requires a separate TCP connection.

🔹HTTP 1.1 was published in 1997. A TCP connection can be left open for reuse (persistent connection), but it doesn’t solve the HOL (head-of-line) blocking issue.

HOL blocking - when the number of allowed parallel requests in the browser is used up, subsequent requests need to wait for the former ones to complete.

🔹HTTP 2.0 was published in 2015. It addresses HOL issue through request multiplexing, which eliminates HOL blocking at the application layer, but HOL still exists at the transport (TCP) layer.

As you can see in the diagram, HTTP 2.0 introduced the concept of HTTP “streams”: an abstraction that allows multiplexing different HTTP exchanges onto the same TCP connection. Each stream doesn’t need to be sent in order.

🔹HTTP 3.0 first draft was published in 2020. It is the proposed successor to HTTP 2.0. It uses QUIC instead of TCP for the underlying transport protocol, thus removing HOL blocking in the transport layer.

QUIC is based on UDP. It introduces streams as first-class citizens at the transport layer. QUIC streams share the same QUIC connection, so no additional handshakes and slow starts are required to create new ones, but QUIC streams are delivered independently such that in most cases packet loss affecting one stream doesn't affect others.

Question: When shall we upgrade to HTTP 3.0? Any pros & cons you can think of?

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[Rômulo @rbareal]

@AeroportoD Notícia para o @XadrezVerbal

[Rômulo @rbareal]

@WonderWanny https://t.co/06imhALhu0

[Rômulo @rbareal]

@jordanschneider @XadrezVerbal @YoMatiasPinto

[Dan Hollick @DanHollick]

Ever wondered how a QR code works?
No, me neither but it's low-key fascinating.

(Warning, there is some extremely nerdy shit here.👇 )

[Rômulo @rbareal]

@WonderWanny Opa, 11 anos em Portugal aqui, zona de Lisboa :)

[vicki @vboykis]

🎉🚨This is real. 🚨🎉
#NormConf is happening.

https://t.co/9roskd3MMD
December 15.
Online.
Free.
A day of normcore data takes.
It’s gonna be great.
Registration is open.

[André Alcântara @AndreAlcantaraz]

🤔 Você sabia que locadoras e lan houses de games ainda existem? E mais: tu sabia que esses locais são muito mais do que espaços pra se jogar?

🎮 O documentário Um real a hora, que produzi como meu TCC, retrata esses lugares como espaços de socialização.

Vem comigo, pai 👇🏾👇🏾👇🏾

[Rômulo @rbareal]

@walkingrandomly I've had to do this work so many times and wondered the same thing. I guess we're stuck on the "someone else will do it" or "must be doing it" valley

[Shreya Shankar @sh_reya]

The sad part is that all these boxes actually exist, and at the small companies, it's one or two people doing all of them

[Rômulo @rbareal]

@thaisviana Pra quem tem filhos e quer curtir um joguinho, ou é depois das 22h (quando vc já está morto) ou é isso ae 😁

[Rômulo @rbareal]

@tiangolo @Docker Where's a super like button when I need it? Congrats!!

[Xadrez Verbal @XadrezVerbal]

♟️ Programa novo vai sair na madrugada, início da manhã de sábado

São mais de duas horas...só sobre Ucrânia e Rússia. Mais três giros de notícias, giro pelo Pacífico, convidado (quem?) e Vivian

Ou seja, vocês vão ter que ajudar na divulgação desse negócio

[Rômulo @rbareal]

@vboykis Twit it and access from the twit, coming from twitter medium is paywall free https://t.co/rNebMNkSSb

[Ev @ev]

All @Medium paywalled stories are now free and unmetered when you’re coming from Twitter.

[Rômulo @rbareal]

@arclight @EmilyGorcenski That's super interesting! Any chance there's a blog or something like it to read more?

[NumFOCUS @NumFOCUS]

@pandas_dev Initial Author and #opensource pioneer @wesmckinn sharing why he donates to NumFOCUS -- and why you should, too!

Join Wes + hundreds of other supporters by giving today and have your donation matched 2-for-1 during our Year-End Fundraiser: https://t.co/kJwKiUqasS.

[Rômulo @rbareal]

@WonderWanny Eu tinha certeza de que a maioria das respostas seria em torno da pronúncia de mobile e não do ponto central colocado. Acontece o mesmo com o @marcogomes 🤣

[Rômulo @rbareal]

@tiangolo will it work with snowflake?

[Rômulo @rbareal]

@ellenkorbes @hschmaiske Hahhaha, lembrei disso aqui
https://t.co/XR5x0QUZTr

[Rômulo @rbareal]

@nickchk This was my feed: