Alexander is now standing up right completely on his own way better than ever before. Over the last few days, all three of us here—Lena, her mom, and myself—independently witnessed how Alexander was standing up without holding on to anything, and he was standing for many seconds. Between the three of us, we saw him standing on the floor, in his crib, and even on a much softer larger bed. This evening we all saw him standing on the floor in the middle of the living room, among his toys, for probably 10 seconds or so, before he realized there was no support, and then he slowly bent his knees and sat down.
Alexander continues walking around on his own while holding on to the furniture. He seems to like that a lot. And we noticed he started moving faster and looks sturdier on his feet. And he is making noticeable progress walking with our help: he positions his feet better, seems to be more stable, and overall looks better than ever before. The boy is growing!